Geometry Theorems and Problems - Recent Additions (Page 6 of 15) Geometry Problem 988. Right Triangle, Cevians, Angles, 30 Degrees, Triple Angle. Geometry Problem 987. Triangle, Circumcircle, Incenter, Chord, Parallel, Circle, Tangent. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). Geometry Problem 986. Triangle, Median, Midpoint, Equal Angles, 45 Degrees. Geometry Problem 985. Circle, Radius, Perpendicular, Concentric Circles, Congruence, Triangle. Geometry Problem 984. Triangle, Circumcircle, Altitudes, Midpoint, Collinear Points. Geometry Problem 983. Regular Hexagon, A point and six triangles, Areas. Geometry Problem 982. Triangle, Excenters, Excentral Triangle, Circumcenter, Area, Hexagon. Geometry Problem 981. Triangle, Concurrent Cevians, Midpoints, Area, Hexagon. Geometry Problems 971 - 980. Equilateral Triangle, Rectangle, Circle, Parallel, Reflection, Concurrency, Paallelogram, Orthocenter, Circumcenter. Geometry Problem 980. Equilateral Triangle, Vertices, Three Parallel, Equal Circles, Construction. Geometry Problem 979. Triangle, Cevian, Angle Bisector, Concurrency, 90 Degrees, Perpendicular. Geometry Problem 978. Parallelogram, Diagonal, Transversal, Similarity, Metric Relations. Geometry Problem 977. Acute Triangle, Circumcenter, Orthocenter, Distance, Circumradius, Altitude, Metric Relations. Geometry Problem 976. Isosceles Right Triangle, 45 Degrees, Incenter, Angle Bisector, Hypotenuse. Geometry Problem 975. Isosceles Right Triangle, 45 Degrees, Angle Bisector, Hypotenuse. Geometry Problem 974. 'Begonia Theorem', Cevian Triangle, Reflection of a point in a line, Concurrency of Lines. GeoGebra, HTML5 Animation for Tablets. Geometry Problem 973. Three Parallel, Square, Vertices, Distance Between Two Parallel Lines, Side, Metric Relations. Geometry Problem 972. Equilateral Triangle, Vertices, Three Parallel, Equal Circles, Perpendicular Bisector. Geometry Problem 971. Equilateral Triangle, Rectangle, Common Vertex, Sum of Right Triangles Areas. Geometry Problem 970. Equilateral Triangle, Circumcircle, Secant, Metric Relations. Geometry Problem 969. Equilateral Triangle, Rectangle, Common Vertex, Right Triangles Areas. Geometry Problem 968. Equilateral Triangle, Rectangle, Common Vertex, Midpoint. Geometry Problem 967. Three Equilateral Triangles, Midpoints. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). Geometry Problem 966. Triangle, Cevians, Midpoint, Circumcircle, Circle, Tangent Line, Collinear Points. Geometry Problem 965. Triangle, Cevians, Midpoint, Circumcircle, Circle, Tangent Line, Metric Relations. Geometry Problem 964. Right Triangle, Cevians, Angles, 10, 20, 30 Degrees. Geometry Problem 963. Right Triangle, 30-60-90 Degrees, Angle Bisectors, Metric Relations. Geometry Problem 962. Triangle, Two Cevians, Areas, Equal Products. Geometry Problem 961. Quadrilateral, Trisection, Sides, Sum of Areas. Geometry Problem 960. Quadrilateral, Trisection, Sides, Congruence, Similarity, Triangle. Geometry Problem 959. Triangle, Sides Ratio 4:1, Inradius, Exradius, Cevian, Mean Proportional, Geometric Mean, Metric Relations. Geometry Problem 958. Isosceles Triangle, Altitude, 45 Degrees, Perpendicular, Angle Bisector, Metric Relations. Geometry Problem 957. Equilateral Triangle, Inscribed Circle, Incircle, Circumscribed Circle, Circumcircle, Area, Circular Segment. Geometry Problem 956. Two Equilateral Triangles, Center, Collinear Points, Midpoint, Right Triangle, 30, 60, 90 Degrees. Geometry Problem 955. Quadrilateral, Triangle, Diagonals, Triangle, Angles, 30, 40, 60, 70 Degrees. Geometry Problem 954. Intersecting Circles, Secant, Common Chord, Cyclic Quadrilateral, Angle Bisector. Geometry Problem 953. Intersecting Circles, Secant, Common Chord, Cyclic Quadrilateral, Perpendicular. Geometry Problem 952. Triangle, Incenter, Circumcenter, Three Equal Circles, Tangent Line, Tangent Circles, Collinear Points. Geometry Problem 951. Intersecting Circles, Chord, Diameter, Parallel, Cyclic Quadrilateral, Concyclic Points. Geometry Problem 950. Intersecting Circles, Secant, Cyclic Quadrilateral, Concyclic Points. Geometry Problem 949. Intersecting Circles, Secant, Cyclic Quadrilateral, Concyclic Points. Geometry Problem 948. Intersecting Circles, Secant, Cyclic Quadrilateral, Concyclic Points. Geometry Problem 947. Triangle, Circumcircle, Angle Bisector, Chord, Arc, Parallel. Geometry Problem 946. Triangle, Quadrilateral, Area, Diagonal, Midpoint, Parallel. Geometry Problems 891 - 900. Triangle, Circle, Parallelogram, Trapezoid, Congruence, Similarity, Metric Relations, Incircle, Rectangle, Square Geometry Problem 945. Triangle, Concurrent Lines, Cevians, Perpendicular, Angle Bisector. Geometry Problem 944. Triangle, Orthocenter, Altitude, Perpendicular, 90 Degrees, Parallel Lines. Geometry Problem 943. Triangle, Incircle, Inscribed Circle, Tangency Points, Parallel, Metric Relations. Geometry Problem 942. Triangle, Circles, Circumcircle, Sagitta, Incircle, Excircle, Inradius, Exradius, Metric Relations. Geometry Problem 941. Circles Tangent Externally, Tangent, Secant, Proportion, Angle. Geometry Problem 940. Circle, Tangent, Secant, Chord, Parallel, Perpendicular, 90 Degrees, Midpoint. Geometry Problem 939. Circle, Tangent, Secant, Chord, Parallel, Midpoint. Geometry Problem 938. Cyclic Quadrilateral, Triangle, Circumcircle, Circles, Circumcenter, Circumradius, Distance, Metric Relations. Geometry Problem 937. Triangle, Circumcircle, Circles, Tangent, Sides, Midpoint. Geometry Problem 936. Circle, Semicircle, Diameter, Tangent, Radius, Chord, Metric Relations. Geometry Problem 935. Square, Circle, Center, Perpendicular, Metric Relations. Geometry Problem 934. Square, Circle, Center, Perpendicular, Metric Relations. Geometry Problem 933. Square, Center, Transversal, Perpendicular, Metric Relations, Congruence. Geometry Problem 932. Square, Midpoint, Diagonal, Ratio 3:1, Angle Measure, Congruence. Geometry Problem 931. Square, Circle, Semicircle, Diameter, Triangle, Angle, Metric Relations. Dynamic Geometry: Exeter PointTriangle, Median, Circumcircle, Concurrent Lines, Euler Line, GeoGebra, HTML5 Animation for Tablets. Geometry Problem 930. Acute Triangle, Altitudes, Circles, Diameter, Angle, Measure. Geometry Problem 929. Triangle, Orthocenter, Circumcircle, Reflection, Concurrency. Geometry Problem 928. Triangle, Midpoint, Median, Cevian, Concurrency, Area. Geometry Problem 927. Semicircle, Diameter, Radius, Equal Arcs, Chord, Congruence. Geometry Problem 926. Two Equilateral Triangles, Midpoint, Perpendicular, Metric Relations. Geometry Problem 925. Cyclic Quadrilateral, Diagonal, Circle, Angle Bisector, Parallel. Geometry Problem 924. Quadrilateral, Diagonal, Perpendicular, Circle, Tangent, Midpoint, Metric Relations. Geometry Problem 923. Quadrilateral, Quadrangle, Obtuse Angle, Triangle, Diagonal, Inequality, Length. Geometry Problem 922. Circle, Tangent Lines, Tangency Points, Chord, Secant, Harmonic Mean. Geometry Problem 921. Right Triangle, Circumcircle, Arc, Midpoint, Tangency Point, Incircle. Geometry Problem 920. Triangle, Angles, 10, 20 Degrees, Congruence. Geometry Problem 919. Rhombus, Triangle, Perpendicular, 90 Degrees, Congruence. Geometry Problem 918. Triangle, Incenter, Incircle, Angle Bisector, Perpendicular, Metric Relations. Geometry Problem 917. Triangle, Congruence, Midpoints, Angle Bisector, Perpendicular. Geometry Problem 916. Cyclic Quadrilateral, Three Circles, Diameter, Congruence. Geometry Problem 915. Triangle, Intersecting Circles, Concyclic Points, Cyclic Quadrilateral. Geometry Problem 914. Triangle, Orthocenter, Angle Bisector, Parallel Lines, Midpoint. Geometry Problem 913. Right Triangle, Double Angle, Triple Angle, Metric Relations. Geometry Problem 912. Right Triangle, Double Angle, Triple Angle, Perpendicular Lines. Geometry Problem 911. Right Triangle, Double Angle, Triple Angle, Concyclic Points, Cyclic Quadrilateral. Geometry Problem 910. Bicentric Quadrilateral, Distance between the Incenter and Circumcenter, Incircle, Circumcircle, Circumscribed, Inscribed, Circumradius. Geometry Problem 909. Bicentric Quadrilateral, Incircle, Circumcircle, Circumscribed, Inscribed, Tangent, Inradius, Distance. Geometry Problem 908. Bicentric Quadrilateral, Incircle, Circumcircle, Circumscribed, Inscribed, Tangent, Inradius. Geometry Problem 907. Bicentric Quadrilateral, Incircle, Circumcircle, Circumscribed, Inscribed, Tangent, Inradius. Geometry Problem 906. Bicentric Quadrilateral, Incircle, Circumcircle, Circumscribed, Inscribed, Perpendicular. Geometry Problem 904: Second Fermat Point: Static diagram. Second Fermat Point: Dynamic diagram. Triangle, Equilateral triangles, Concurrent lines, GeoGebra, HTML5 Animation for Tablets (iPad, Nexus) Geometry Problems 881 - 890. Triangle, Circle, Parallelogram, Trapezoid, Congruence, Similarity, Metric Relations, Incircle, Rectangle, Square Static Diagram of problem 902 Dynamic Geometry Problem 902 Triangle, Four Squares, Center, Concurrent Lines. GeoGebra, HTML5 Animation for Tablets Static Diagram of problem 901 Dynamic Geometry Problem 901 Intersecting Circles, Common External Tangent, Secant, Circumcircle, Concyclic Points, Cyclic Quadrilateral. GeoGebra, HTML5 Animation for Tablets Geometry Problem 900 Intersecting Circles, Common External Tangent, Secant, Angle, Congruence. GeoGebra, HTML5 Animation for Tablets Geometry Problem 899 Intersecting Circles, Common External Tangent, Secant, Concyclic Points, Cyclic Quadrilateral. GeoGebra, HTML5 Animation for Tablets Geometry Problem 898 Intersecting Circles, Common External Tangent, Secant, Circumcenter, Collinear Points. GeoGebra, HTML5 Animation for Tablets Geometry Problem 897 Intersecting Circles, Common External Tangent, Secant, Congruence. GeoGebra, HTML5 Animation for Tablets Geometry Problem 896 Triangle, Orthocenter, Midpoint, Median, Intersecting Circles, Diameter, Collinear Points. GeoGebra, HTML5 Animation for Tablets Geometry Problem 895 Triangle, Incircle, Tangency Points, Parallel line, Collinear Points. GeoGebra, HTML5 Animation for Tablets Geometry Problem 894 Triangle, Angle, 60 degrees, Incenter, Midpoint, Parallel Lines. GeoGebra, HTML5 Animation for Tablets Geometry Problem 893 Triangle, Circumcircle, Incenter, Circle, Tangent, Collinear Points. GeoGebra, HTML5 Animation for Tablets Geometry Problem 892 Triangle, 60 degrees, Orthocenter, Circumcenter. Geometry Problem 891 Equiangular Octagon, Metric Relations, Sides, Auxiliary Lines. Geometry Problem 890 Two Squares inscribed in Circles, Concurrent Lines. GeoGebra, HTML5 Animation for Tablets. Geometry Problem 889 Carnot's Theorem in an acute triangle, Circumcenter, Circumradius, Inradius. GeoGebra, HTML5 Animation for Tablets. Geometry Problems 871 - 880. Triangle, Circle, Parallelogram, Trapezoid, Congruence, Similarity, Metric Relations, Incircle, Rectangle, Square Geometry Problem 888 Butterfly Theorem, Circle, Chord, Midpoint. GeoGebra, HTML5 Animation for Tablets. Geometry Problem 887 Triangle, Altitude, Angle Bisector, Perpendicular, Midpoint, Concyclic Points. GeoGebra, HTML5 Animation for Tablets. Geometry Problem 886 Right Triangle, Incenter, Angle Bisector, Perpendicular, 45 Degrees, Concyclic Points, Isosceles Right Triangle. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus).. Geometry Problem 885 Intersecting Circles, Three Tangent Lines, Midpoint. Geometry Problem 884: The Pythagorean Curiosity Right Triangles and squares, fifteen conclusions. Geometry Problem 883 Five Circumscribed Quadrilaterals, Circle, Tangent, Common Tangent. Geometry Problem 882 Triangle, Angle x, 2x, 7x, Cevian, Congruence, Auxiliary Lines. Geometry Problem 881 Triangle, three Squares, Centers, Areas. Geometry Problem 880 Triangle, Midpoints, Sides, Perpendiculars, Hexagon, Area. Geometry Problem 879 Square, Midpoint, Diagonal, Ratio 3:1, Angle Measure. Geometry Problem 878 Square, Inscribed Circle, Quadrant, Center, Perpendicular, Metric Relations. Geometry Problem 877 Square, Right Triangle, Similarity, Metric Relations, Transversal. Geometry Problem 876 Equilateral Triangle, any Point, Perpendicular, Right Triangle Area, Sum of Areas. Geometry Problem 875 Congruent Circles, Intersecting Circles, Secant, Center, Angle Trisection, Triple Angle. Geometry Problem 874 Isosceles Triangle, Circumcircle, Circumcenter, Congruence. Geometry Problem 873 Quadrilateral, Diagonal, Triangle, Angle Bisector, Congruence. Geometry Problem 872 Quadrilateral, Triangle, Angle, 30, 90 degrees. Geometry Problem 871 Brahmagupta's Theorem, Cyclic Quadrilateral, Perpendicular Diagonals, Midpoint. Geometry Problem 870 Triangle, Median, Three Squares, Centers, Vertices, Collinear Points, Midpoint. Geometry Problem 869 Triangle, Median, Three Equilateral Triangles, Collinear Points, Midpoint. Geometry Problem 868 Cyclic Quadrilateral, Circle, Five Rectangles, Four Centers, Congruence. GeoGebra, Dynamic Geometry: Internal Feuerbach Point HTML5 Animation for Tablets (iPad, Nexus..) Geometry Problem 867 Isosceles Triangle, Median, Perpendicular, Angle, Congruence. Geometry Problem 866 Cyclic Quadrilateral, Circle, Rectangle, Center, Congruence, 90 Degrees. Geometry Problem 865 Parallelogram, Diagonal, Midpoint, Side, Triangle, Parallel, Similarity. Geometry Problem 864 Parallelogram, Diagonal, Congruence, Similarity, Metric Relations. GeoGebra, Dynamic Geometry: Nine Point Circle HTML5 Animation for Tablets (iPad, Nexus..) GeoGebra, Dynamic Geometry: Lemoine Line of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) GeoGebra, Dynamic Geometry: Simson Line of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) GeoGebra, Dynamic Geometry: Euler Line of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) Geometry Problem 863 Circumscribed trapezoid, Inscribed Circle, Tangent, Metric Relations. Geometry Problem 862: Trapezoid, Parallel, Equal Areas, RMS, Root Mean Square . GeoGebra Constructions Index HTML5 Animation for Tablets (iPad, Nexus..) Geometry Problem 861 Triangle, Incircle, Parallel, Tangent, Metric Relations. GeoGebra, Dynamic Geometry: Circumcenter and Circumcircle of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) GeoGebra, Dynamic Geometry: Centroid of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) GeoGebra, Dynamic Geometry: Incenter and Incircle of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) Root Mean Square (RMS) in Geometry Index . GeoGebra, Dynamic Geometry: Orthocenter of a Triangle. HTML5 Animation for Tablets (iPad, Nexus..) Geometry Problem 860 Triangle, Three Medians, Parallel, Parallelogram, Area, Congruence. Nine-Point Center, Nine-Point Circle, Euler Line. Interactive illustration. Circumcenter, Centroid, Orthocenter HTML5 Animation for iPad and Nexus Lemoine Line Theorem, Interactive illustration. HTML5 Animation for iPad and Nexus Geometry Problem 859 Isosceles Right Triangle, Angles,18, 45 Degrees, Congruence, Perpendicular bisector. Gergonne Point Theorem. Concurrency. Interactive proof with animation. HTML5 Animation for Tablets (iPad, Nexus) Adobe Flash Animation Geometry Problem 858 Isosceles Right Triangle, Cevian, Ratio 2:1, 45 Degrees, Congruence, Angles, Auxiliary Lines. Geometry Problem 857 Triangle, Median, Midpoint, Angles, 30, 45 Degrees, Congruence, Auxiliary Lines. Geometry Problem 856 Quadrilateral, Diagonals, Triangle, Angles, 30 degrees, Congruence, Auxiliary lines. Platonic Solids, Interactive animation. HTML5 Animation for iPad and Nexus Johnson's Theorem, Intersecting circles. HTML5 Animation Geometry Problem 855 Quadrilateral, Triangle, Angles, 30 degrees, Congruence, Auxiliary lines. Geometry Problem 854 Triangle, Parallel lines, Parallelogram, Areas, Similarity, Concurrent lines. Geometry Problem 853 Square, Arc, Quadrant, Triangle, Perpendicular, Metric Relations. Geometry Problem 852 Triangle, Incircle, Inradius, Tangent, Metric Relations. Geometry Problem 851 Triangle, Triple side, Angles, 90 Degrees, Special Right triangle, Sides ratio 1:3. Geometry Problem 850 Triangle, Double side, Angles, 90 Degrees. Special Right triangle. Geometry Problem 849 Special Right triangle, Catheti or legs ratio 1:3, 18.5 Degrees. Double angle. Geometry Problem 848 Special Right triangle, Catheti or legs ratio 1:2, 26.5 Degrees. Double angle. iPad Apps: Apollonius Software. Feuerbach Point. Triangle, Incircle, Nine point circle, Tangent circles, Orthocenter, Midpoint. Interactive Geometry Software for iPad. Geometry Designer for iPad, iPhone, iPod - Index Dynamic Geometry. Geometry Problem 847 van Lamoen Circle, Triangle, Medians, Centroid, Six Circumcenters, Concyclic Points. iPad Apps, Geometry Designer Illustration. Circle of van Lamoen. Interactive Geometry Software for iPad, iPhone, iPod. iPad Apps: Geometry Designer Illustration. Four Circles Theorem. Interactive Geometry Software for iPad, iPhone, iPod. Geometry Problem 846 Triangle, Medians, Centroid, Four Circumcenters, Concyclic Points, Cyclic Quadrilateral, Similarity. Geometry Problem 845 Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity. Geometry Problem 844 Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity. Geometry Problem 843 Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Parallel, Congruence, Similarity. Geometry Problem 842 Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity. Geometry Problem 841 Triangle, Medians, Centroid, Circumcenters, Perpendicular, Congruence, Similarity. Geometry Problem 840 Parallelogram, Perpendicular, Diagonal, Metric Relations, Similarity. Geometry Problem 839 Problem 839: Parallelogram, Perpendicular, Diagonal, Metric Relations. Geometry Problem 838 Parallelogram, Perpendicular, Diagonal, Metric Relations. Geometry Problem 837 Triangle, Orthocenter, Circumcenter, Circle, Concyclic Points. Geometry Problem 836 Parallelogram, Perpendicular, Diagonal, Similarity, Metric Relations. Geometry Problem 835 Isosceles Triangle, Double Angle, Triple Angle, Auxiliary Lines. Geometry Problem 834 Parallelogram, Diagonal, Similarity, Geometric Mean, Mean Proportional. Mean in Geometry. Index. Geometry Problem 833 Parallelogram, Diagonal, Similarity, Proportion. Geometry Problem 832 Quadrilateral, Isosceles triangle, 70-70-40 degrees, Congruence, Auxiliary lines, Equilateral triangle. Geometry Problem 831 Quadrilateral, Diagonal, Midpoint, Opposite Angles, Congruence, Parallelogram. Geometry Problem 830 Quadrilateral, Triangle, Angles, 30 degrees, Congruence. Geometry Problem 829 Triangle, Circumcircle, Parallel, Chord, Side, Metric Relations. Geometry Problem 828 Quadrilateral, Midpoint, Opposite sides, Diagonals, Concurrent lines, Triangle, Bimedian. Geometry Problem 827: Brianchon Corollary Circumscribed Hexagon, Tangency Points, Diagonal, Opposite Sides, Concurrent lines. Geometry Problem 826: Brianchon's Theorem Circumscribed Hexagon, Concurrent Diagonals. Geometry Problem 825. Circle, Semicircle, Arc, Chord, Midpoint, Sector, Triangle, Area. Geometry Problem 824 Desargues' Theorem, Triangles in Perspective. Geometry Problem 823. Tangent Circles, Diameter, Perpendicular, Chord, Secant, Triangle, Area, Tangency Point. Circle Area. Index. Theorems and Problems. Geometry Problem 822. Circle, Semicircle, Arc, Chord, Midpoint, Sector, Triangle, Area. Geometry Problem 821. Adams Circle. Geometry Problem 820. Triangle, Cevian, Angles, 30 Degrees. Geometry Problems 811 - 820. Triangle, Circle, Quadrilateral, Square, Pitot Theorem, Arbelos, Tangent, 30 Degrees. Geometry Problem 819. Quadrilateral, Triangle, Angles, 30 degrees. Geometry Problem 818. Square, Triangle, Angle. Geometry Problem 817.Two circles, Tangent Lines, Circumscribed Quadrilaterals. Geometry Problem 816.Tangential or Circumscribed Quadrilateral: Pitot Theorem. Geometry Problem 815. Triangle, Incircle, Semicircles, Arbelos, Area. Geometry Problem 814. Two Equilateral Triangles with a common Vertex, Angle. Geometry Problem 813. Right Triangle Area, Excircles, Cathetus, Tangency Points, Quadrilateral Area. Geometry Problem 812. Four Tangent Circles, Common Tangent Line, Diameter, Area, Collinear Centers. Geometry Problem 811: Trisecting a line segment. With four circles and one line. Geometry Problem 810: Trisecting a line segment. With two circles and eight lines. Geometry Problem 809: Trisecting a line segment. With three circles and four lines. Geometry Problem 808 Parallelogram, Perpendicular, Right Triangle, Semicircle Area, Diameter. Geometry Problem 807 Right Triangle Area, Incircle, Tangency Points, Semicircle Area. Lines. Theorems and Problems. Trisecting a Line Segment. Theorems and Problems Geometry Problem 806 Triangle, Points on sides, Circumcenter, Similarity. iPad Apps: Apollonius Software. Problem 794: Right Triangle, Altitude, Three Incenters, Circumcircles, Incircle, Congruence. Interactive Geometry Software. Geometry Problem 805, Stewart Theorem Triangle, sides and a cevian. iPad Apps: Apollonius, Interactive Geometry Software IGS Index. Theorems and Problems with Apollonius for iPad. Geometry Problem 804 Circle, Chord, Midpoints. Geometry Problem 803 Right Triangle, Altitude, Angle Bisector, Perpendicular, Measurement. Geoboard for iPad Gallery: Squares inscribed in squares.Midpoints of the sides, Sequence, Recursive Form, Areas Geoboard for iPad Index. This virtual version is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use iPod Touches, iPhones, or iPads Geometry Problem 802 Scalene Triangle, Median, Perpendicular, Angle, Measurement. Geometry Problem 801 Equilateral Triangles, Cevian, Midpoint, Distance, Measurement, Metric Relations. Geometry Problem 800: de Gua's Theorem Pythagorean theorem in 3-D, Tetrahedron, Cubic Vertex, Triangular Pyramid, Apex, Height, Right Triangle Area, Base Area, Projected Area. Geometry Problem 799 Parallelogram, Angle Bisector, Parallel, Triangle, Circumcircle, Circumcenter. Geometry Problem 798 Parallelogram, Secant Line, Tangent Circles, Circumcircles, Triangle. Geometry Problem 797 Parallelogram, Angle Bisector, Isosceles and Similar Triangles. Geometry Problem 796 Triangle, Altitude, Measurement of Angles. Geometry Problem 795 Intersecting Circles, Common Chord, Midpoint, Tangent, Secant Line, Perpendicular, 90 Degrees. Geometry Problem 794 Right Triangle, Altitude, Three Incenters, Circumcircles, Incircle, Congruence. Geometry Problem 793 Right Triangle, Altitude, Three Incircles, Incenters, Circumcircle, Circumradius, Perpendicular, Distance. Geometry Problem 792 Right Triangle, Altitude, Angle Bisector, Three Incircles, Five Concyclic Points, Circles. Geometry Problem 791 Regular Hexagon, Midpoints of Side and Diagonal, Equilateral Triangle, Area. Geometry Problem 790 Right Triangle, Altitude, Angle Bisector, Incircle, Tangency Point, Inradius, Circles, Tangent Line, Congruence. Geometry Problem 789 Right Triangle, Altitude, Angle Bisector, Incircle, Tangency Point, Inradius, Circles, Tangent Line. Geometry Problem 788 Intersecting Circles, Secant Line, Midpoint, Cyclic Quadrilateral. Right triangle, Altitude, Incircle Right Triangle, Altitude to the Hypotenuse, Incircle, Incenter, Inradius, Angle Bisector, Theorems and Problems, Index. Geometry Problem 787 Right Triangle, Inradius, 18 Equal Circles, Line Tangent, Legs, Hypotenuse, Ratio, Metric Relations. Geometry Problem 786 Right Triangle, Altitude, Hypotenuse, Cevian, Perpendicular, Ratio, Metric relations. Geometry Problem 785 Equilateral Triangle, Parallel, Perpendicular. Geometry Problem 784 Triangle, Orthocenter, Altitude, Midpoint of a side, Perpendicular. Geometry Problem 783 Triangle, Orthocenter, Circumcenter, Circumcircle, Diameter, Altitude, Midpoint. Geometry Problem 782 Triangle, Orthocenter, Circumcenter, Circumcircle, Diameter, Altitude, Parallelogram. Geometry Problem 781 Triangle, Orthocenter, Circumcenter, Vertex, Altitude, Midpoint, Perpendicular. Isogonal Lines. Theorems and Problems.

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