Categories
Intermediate

Pull the string

Two regular hexagons and a circumcircle. What is blue : red?

Scroll down for a solution to this problem.

Solution

Blue : red is √3 : 1.

Solution by Matthew Arcus.

Black angle is 60°, so dashed line passes through opposite hexagon vertex showing the blue line is symmetric with the black diagonal, so ratio is √3:1.

Video

Please find here the video solution: Video: Pull the string.

🤞 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Your email address will not be published.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)