Monday, July 7, 2008

Trapezoid, diagonal, midpoints

Given a triangle ABC and a trapezoid ADEC (DE // AC), as shown. AE and CD meet at F, and BF meets DE and AC at N and M respectively. Prove that M and N are the midpoints of AC and DE respectively.

See complete Problem
Trapezoid, Triangle, Diagonals, Midpoints. Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
Prove proposition.. Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

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