Recent Additions 5, Theorems and Problems, Plane Geometry

Geometry Theorems and Problems - Recent Additions (Page 5 of 15)

Geometry Problems 211 - 220.
Equilateral triangle, Quadrilateral, Area, Cyclic Quadrilateral, 60 Degree, Angle Bisector, 120, incircle, Inradius, Semicircle, Tangent, Concurrency, Right triangle, Altitude, Projection, Rhombus, Perpendicular, Arithmetic Mean, Distance.

Problem 520.
Triangle with six Squares, Ratio, Area.

Problem 519.
Triangle, Squares, Altitude, Perpendicular, Rectangle, Area.

Geometry Problems 191 - 200.
Triangle, Circle, Square, Area, Circle, Diameter, Altitude, Orthocenter, Semiperimeter, Inradius, Exradius, Quadrilateral, Angle, Tangent, Right triangle.

Problem 518.
Parallelogram, Five Squares, Centers, 45 Degrees, Measure.

Problem 517.
Right Triangle, Six Squares, Areas.

Problem 516.
Triangle, Cevian, Congruence, Angles.

Problem 515.
Triangle, Double Angle, Altitude, Measure.

Geometry Problems 181 - 190.
Right Triangle, Trapezoid, Square, Intersecting Circles, Circular Sector, 90 Degrees, Angles, Trisection, Hypotenuse, Distance, Incenter, Altitude, Diagonal, 45 Degrees, Tangent, Chord, Perpendicular.

Problem 514.
Triangle, Five Squares, Line, Area.

Problem 513.
Triangle, Double Angle, Exterior Angle Bisector, Measure.

Geometry Problems 171 - 180.
Area, Triangle, Quadrilateral, Circle, Parallelogram, Trapezoid, Square, Rhombus, Diagonal, Angle, Tangent, Trisection.

Geometry Problems 161 - 170.
Area, Triangle, Parallelogram, Trapezoid, Pentagon, Diagonal, Midpoint, Octagon.

Problem 512.
Triangle with three squares and concurrency.

Problem 511.
Triangle, Double Angle, Angle Bisector, Measure.

Problem 510.
Triangle, Three Squares, Midpoints, Concurrency.

Problem 509.
Triangle, 120 Degrees, Angles, Congruence, Mind Map.

Geometry Problems 151 - 160.
Triangle, Quadrilateral, Area, Trisection, Circle, Proportion, Diagonal, Chord,Inradius, Circumradius, Exradius, Euler, distance, Incenter, Circumcenter, Excenter, Incircle, Circumcircle.

Problem 508.
Triangle with three Squares, Four triangle of equal Area.

Problem 507.
Triangle, Interior Point, 120 Degrees, Congruence, Angle.

Problem 506.
Triangle with Three Squares, Center, Midpoint, Perpendicular.

Problem 505.
Right Triangle, Cevian, Sum of Segments, Angles.

Problem 504.
Equilateral Triangle, Angles, 45, 60 Degrees.

Ten Geometry Problems, Visual Index

Problem 503.
Triangle with Three Squares, Perpendicular, Congruence, Concurrency.

Geometry Problems 141 - 150.
Triangle, Quadrilateral, Parallelogram, Incircle, Incenter, Tangent, Parallel, Perimeter, Area, Inradius, Circumradius, Midpoint, Varignon, Trisection.

Problem 502.
Triangle, Two Squares, Midpoint, Perpendicular, Half the measure.

Problem 501.
Triangle, Two Squares, Center, Midpoint, another Square.

Problem 500.
Circle, Diameter, Chord, Perpendicular, Measure.

Problem 499.
Triangle, Two Squares, Perpendicular.

Problem 498.
Triangle, Angle Bisector, Double Angle, Measure.

Problem 497.
Triangle, Two Squares, Centers, Midpoint, 90 Degrees.

Problem 496.
Triangle, Two Squares, 90 Degrees, Concurrency, Angle Bisectors.

Problem 495.
Triangle, 120 Degrees, Angle Bisectors.

Geometry Problems 121 - 130.
Triangle, Area, Similarity, Trisection, Hexagon, Star, Incenter, Centroid, Parallel, Proportions, Angle Bisector, Ratio

Problem 494.
Circular Sector, 90 Degrees, Semicircle, Chord, Parallel.

Geometry Problems 111 - 120.
Orthogonal Circles, Triangle, Square, Area, Incircle, Excircle, Tangent, Incenter

The Simson Line, Theorems and Problems - Index.

Geometry Problems 101 - 110.
Angle, Equilateral Triangle, Pythagorean Theorem, Median, Heron, Cevian, Contact Triangle.

Problem 493.
Right Triangle, Circumcircle, Perpendicular, Chord.

Problem 492.
Cyclic Quadrilateral, Circle, Perpendicular, Side, Diagonal, Parallel.

Geometry Problems 91 - 100.
Similarity, Triangles, Altitude, Parallel, Circumcircle, Parallelogram, Incenter, Area, Centroid, Quadrilateral, Archimedes, Pythagoras.

Problem 491.
Square, Right Triangle, Incircle, Inscribed Circle, Radius.

Geometry Problems 81 - 90.
Triangle, Quadrilateral, Circle, Incircle, Circumcircle, Excircle, Inradius, Circumradius, Exradius, Contact Triangle, Area, Midpoint.

Problem 490.
Tangent Circles, Arc, Radius, Circular Sector, Area.

Problem 489.
Parallelogram, Triangle, Quadrilateral, Area.

Problem 488.
Triangle, Cevian, Concurrency, Circle, Circumcircle.

Geometry Problems 71 - 80.
Cyclic Quadrilateral, Intersecting Circles, Area, Inradius, Incircle.

Problem 487.
Intersecting Circles, Area, Diameter, Parallel, 90 Degrees.

Problem 486.
Tangent circles, Chord, Arc, Midpoint, Collinearity, Congruence.

Problem 485.
Square, Side, Circles, Tangent, Radius, Measurement.

Problem 484.
Square, Angle, 90 degrees, Triangle, Measurement, Proportion.

Geometry Problems - Visual Index.

Problem 483.
Square, Angle, 90 degrees, Measurement.

Problem 482.
Triangle, Circumcircle, Incenter, Excenter, Midpoint, Cyclic Points.

Problem 481.
Triangle, Altitude, Cevian, Perpendicular, Angle.

Geometry Problems 61 - 70.
Triangle, Quadrilateral, Circle, Cyclic, Similarity.

Problem 480.
Triangle, Circle, Center, Altitude, Angle, Circumcenter.

Problem 479.
Triangle, Cevians, Concurrency, Transversal, Proportion.

Problem 478.
Triangle, Sides, Circumradius, Circumcenter, Circumcircle.

Problem 477.
Parallelogram, Triangle, Quadrilateral, Area.

Geometry Problems 51 - 60.
Triangle, Quadrilateral, Circle, Cyclic Quadrilateral.