Geometry Problem 1443: Triangle Area, Incenter, Circumcenter, 90 Degree, Perpendicular, One-third, Measurement

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1438: Triangle, Incenter, Centroid, Circumcenter, Parallel, 90 Degree, Art, Poster

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Level: Mathematics Education, High School, Honors Geometry, College.

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Poster of Geometry Problem 1389: Triangle, 40-120-20 degree, Angle, Congruence using iPad Apps, Software

Geometric Art: Poster, Typography, iPad

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Geometry Problem 1389: Triangle, 40-120-20 degree, Angle, Congruence

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Typography of Geometry Problem 1304: Triangle, 120 Degrees, Angle Bisector, Incenter, Measurement, iPad Apps

Geometric Art: Typography, iPad

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Geometry Problem 1336: Right Triangle, Cevian, Double Angle, Perpendicular, 90 Degrees

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

This entry contributed by Sumith Peiris, Moratuwa, Sri Lanka.

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Geometry Problem 1329: Two Squares Side by Side, Parallel, Perpendicular, 90 Degrees, Congruence

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1257: Triangle, Altitude, Perpendicular, 90 Degree, Measurement

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1251: Triangle, Circle, Diameter, Perpendicular, 90 Degrees

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1216: Circle, 90 Degrees, Tangent, Common Chord, Collinearity

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

This entry contributed by Peter Tran, California, U.S.A.

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Geometry Problem 1167: Triangle, Circle, Circumcircle, Perpendicular, 90 Degrees, Collinear Points

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1150: Circle, Perpendicular Secants, 90 Degrees, Congruence

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1136: Triangle, Circumcircle, Orthocenter, Midpoint, Arc, 90 Degrees, Angle

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1123: Hexagon, Triangle, 90 Degrees, Perpendicular Lines, Vertices, Area

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Problem 1102: Right Triangle, Incircle, Tangency Point, 90 Degree, Cathetus, Metric Relations

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 1097: Quadrilateral, Inscribed Circle, 90 Degree, Angle, Area

Geometry Problem. Post your solution in the comment box below.
Level: Mathematics Education, High School, Honors Geometry, College.
Problem submitted by Maurice Ho
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Geometry Problem 1022: Circular Sector of 90 Degrees, Squares, Metric Relations

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 998. Scalene Triangle, Isosceles, Angle, 120 Degree, Midpoint, Equilateral, Congruence

Geometry Problem.
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Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 989: Arbelos, Semicircles, Diameter, Perpendicular, 90 Degree, Common External Tangent, Rectangle, Midpoint of Arc

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

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Geometry Problem 979: Triangle, Cevian, Angle Bisector, Concurrency, 90 Degrees, Perpendicular

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

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