Wednesday, May 1, 2024

Mensa Math Brain Buster Puzzle

 



The pattern shows 17 congruent circles in an irregular ring such that each circle is tangent to two other circles.

A polygon is created by joining the centers of the circles as shown in the diagram. 

Let A1 = the area of all circular sectors inside the polygon (i.e. the blue sectors)

Let A2 = the area  of all the circular sectors outside the polygon (i.e. the lavender sectors).

Find A2 - A1.

(Answer on Friday)