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Page 6. Welcome to Math tutoring: Geometry Theorems and Problems! Site created and maintained by Antonio Gutierrez.
Level: High School, SAT Prep, College geometry.

Geometry Theorems and Problems - Recent Additions (Page 6 of 8)

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41. Proposed Problems about congruence of line segments, angles, and triangles.
Level: High School, SAT Prep, College geometry.

 44. Sangaku Problem (An Old Japanese Theorem)
 Let a convex inscribed polygon be triangulated in any manner, and draw the incircle to each triangle so constructed. Then the sum of the inradii is a constant independent of the triangulation chosen.

 45. Sangaku Problem 2. Proof

 46. Sangaku Problem 3
 3 circles of radiii: a, b, c mutually tangent to each other and a line

48. Semiperimeter and excircles of a triangle

49. Semiperimeter and incircle of a triangle

50. Semiperimeter and incircle and excircles of a triangle

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