Online Geometry Problems, Level: Mathematics Education, High School, College

Geometry Problems - Index (Page 1 of 40)

Open Geometry Problems
Index

Geometry Problem 730.
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Triangle, Altitude, Orthocenter, Perpendicular, Concurrent Lines.

Geometry Problem 729.
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Triangle, Altitude, Orthocenter, Circumcircle, Perpendicular, Midpoint.

Geometry Problem 728.
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Triangle, Altitude, Perpendicular, Circumcircle, Midpoint, Intersecting Circles, Concurrency.

Geometry Problem 727.
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Triangle, Isosceles, Congruence, Angles, Measurement.

Geometry Problem 726.
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Isosceles Triangle, Perpendicular, Midpoint, 90 Degrees.

Geometry Problem 725.
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Kurschak's Dodecagon, Square, Equilateral Triangle, Midpoints, 30, 60 Degrees.

Geometry Problem 724.
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Circumscribed Quadrilateral, Circle, Angle, Incenter, Half the Measure.

Geometry Problem 723.
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Squares, Circumscribed Circles, Collinear points.

Geometry Problem 722.
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Squares, Circumscribed Circles, Collinear points.

Geometry Problem 721.
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Triangle, Orthocenter, Circumcircle, Altitude, Collinear points.

Geometry Problem 720.
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Excenter, Intersecting Circles, Angle, Measurement.

Geometry Problem 719.
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Incenter, Intersecting Circles, Angle, Measurement.

Geometry Problem 718.
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Intersecting Circles, Midpoint, Angle, Measurement.

Geometry Problem 717.
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Intersecting Circles, Midpoint, Angle, Measurement.

Geometry Problem 716.
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Problem 716. Intersecting Circles, Center, Radius, Perpendicular, 90 Degrees.

Geometry Problem 715.
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Triangle, Altitudes, Parallel, Circumcircle, Angle, Measurement.

Geometry Problem 714.
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Triangle, Parallel, Cevians, Midpoints, Median, Ceva Theorem.

Geometry Problem 713.
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Tangent Circles, Diameter, Chord, Tangent, Incenter, Incircle, Triangle.

Geometry Problem 712.
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Semicircle, Diameter, Tangent, Perpendicular, Angle Measure.

Geometry Problem 711.
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Rectangle, Midpoint, Angle, Concyclic Points, Cyclic Quadrilateral.

Geometry Problem 710.
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Parallelogram, Midpoint, Diagonal, Collinear Points, Metric Relations, Triangle, Similarity, Congruence.

Geometry Problem 709.
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Parallelogram, Midpoint, Diagonal, Metric Relations, Triangle.

Problem Solving Techniques, Interactive Mind Map.

Geometry Problem 708.
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Circle, Tangent, Intersecting, Lune, Area, Diameter.

Geometry Problem 707.
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Triangle, Excenters, Angle Bisectors, Angle, Measurement.

Geometry Problem 706.
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Triangle, Cevian, Three Circumcenters, Circumcircles, Concyclic Points, Cyclic quadrilateral.

Geometry Problem 705.
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Intersecting Circles, Diameter, Angles, Measurement.

Geometry Problem 704.
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Triangle, Orthocenter, Altitude, Midpoint, Perpendicular.

Geometry Problem 703.
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Triangle, Incircle, Tangency point, Diameter, Congruence.

Geometry Problem 702.
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Triangle, Circumcircle, Parallel, Concyclic Points.

Geometry Problem 701.
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Intersecting Circles, Diameter, Perpendicular, Angles, Congruence.

Geometry Problem 700.
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Equilateral Triangle, Circle, Circular Segment, Midpoint of a side, Metric Relations.

Geometry Problem 699.
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Equilateral Triangle, Circle, Circular Segment, Midpoint, Metric Relations.

Geometry Problems 691 - 700.
Triangle, Quadrilateral, Circle, Metric Relations, Square, 30-60-120 Degrees, Area, Congruence.

Geometry Problem 698.
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Quadrilateral, Diagonal, Angle Bisector, Triangle, 120 Degrees.

Geometry Problem 697.
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Square, Circle, Sector, Segment, Tangent, Inscribed, Congruence, Mind Map, Polya.

Ten Geometry Problems, Visual Index

Geometry Problem 696.
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Triangle, Angles, Auxiliary Construction, Congruence, Mind Map, Polya.

Geometry Problem 695.
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Triangle, Quadrilateral, Angles, Auxiliary Construction, Congruence, Mind Map, Polya.

Geometry Problem 694.
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Triangle, Angles, 30 Degrees, Auxiliary Construction, Mind Map, Polya.

Geometry Problem 693.
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Square, Inscribed and Circumscribed Circle, Areas, Mind Map, Polya.

Geometry Problem 692.
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Quatrefoil, Four Equal Circles and a Circle Inscribed in a Square, Areas, Mind Map, Polya.

Geometry Problem 691.
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Isosceles Triangle, 80-80-20 Degrees, Angles, Congruence, Mind Map, Polya.

Problem 690: Distance between the Incenter and the Centroid of a Triangle.
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Formula in terms of the sides a,b,c.

Geometry Problem 689.
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Triangle, Three Excircles, Tangency points, Tangent lines, Concurrent Lines, Mind Map.

Geometry Problem 688.
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Triangle, Angles, 10, 20, 30, 40, 60 Degrees, Measure, Mind Map, Polya.

Geometry Problem 687.
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Triangle, Three Excircles, Tangency points, Concurrent Lines.

Geometry Problem 686.
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Triangle, Three Excircles, Tangency points, Tangent lines, Semi-perimeter, Congruence.

Geometry Problem 685
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Isosceles Triangle, 100-40-40 Degrees, Angles, Congruence.

Geometry Problem 684: Outer Nagel Point.
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Triangle, Excircles, Incircle Tangency points, Concurrent lines, Semi-perimeter, Ceva theorem.

Geometry Problem 683: Nagel Point.
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Triangle, Excircles, Tangency points, Concurrent lines, Semi-perimeter, Ceva theorem.

Geometry Problem 682: Gergonne External Point.
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Triangle, Excircle, Tangency points, Concurrent lines, Semiperimeter, Ceva theorem.

Geometry Problem 681: Gergonne Point.
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Triangle, Incircle, Tangency points, Concurrent lines, Semiperimeter, Ceva theorem.

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