Tuesday, February 3, 2009

Elearn Geometry Problem 241: Triangle with Equilateral triangles, Congruence

Problem: Triangle with Equilateral triangles, Parallelogram

See complete Problem 241 at:

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

1 comment:

  1. In triangles ABA' and C'BC we have C'B = AB & BC = BA'(sides of equilateral triangles) while the included angle in each case is angle (ABC+60) Thus the two triangles are congruent. So AA' = CC'
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