The hawfinch II

A circle with two tangents. What’s red : blue in terms of α?

Scroll down for a solution to this problem.


Red : blue is sin(α/2).

Solution by ohmohm.

🤞 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Your email address will not be published.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)