Crashing the kite

The orange lines are parallel, the purple lines are parallel, the dotted gray lines intersect the base at equal distances. What is the ratio of areas of the blue and green triangles?

Scroll down for a solution to this problem.


Green : blue = 1 :1.

Solution by Stéphane Bernard.

QIM is a rotation around M of GJM which is similar to GSU. Pair of angles at G and Q are the same => IL =LM => Blue = Green.

🤞 Don’t miss these puzzles!

Subscribe to the weekly geometry puzzle e-mail.

Leave a Reply

Your email address will not be published. Required fields are marked *

Optionally add an image (JPEG only)