Showing posts with label base. Show all posts
Showing posts with label base. Show all posts

Wednesday, October 6, 2010

Montessori Method, Geometric solid bases, Rectangle, Square, Circle for Children - Video and News

Using the bases of geometric solids will improve your child's visual skills.

Click the figure below to see the video and news.

Montessori Method: Geometric solid bases, Rectangle, Square, Circle for Children - Video and News

Monday, July 7, 2008

Trapezoid, diagonal, midpoints

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

Post your solutions or ideas in the comments.