Monochrome Isosceles Triangle

All points on a circle are colored in blue and red colors. Show that you can inscribe inside the circle an isosceles triangle whose vertices have the same color.

Inscribe a regular pentagon inside the circle. Three of its five vertices must have the same color, and they form an isosceles triangle.

+ latest posts

We do not know where this puzzle originated from. If you have any information, please let us know via email.

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View All Comments
Share via
Copy link