Question

#Brain TEaser

A regular hexagon and a square.
The yellow circle has area 1. Find the area of red circle.

Answer 1

Answer:

The radius equals the height of the equilateral triangles of side s.

By Pythagoras,

h2+(s2)2=s2

so that

h=3–√2s.

Answer 2

Explanation:

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Refer to the above attachment ⬆️⬆️.