Proposition

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

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## Monday, July 7, 2008

### Trapezoid, diagonal, midpoints

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