Question

What is the area of the largest square you can fit inside a circle of radius 5

Answer 1

50.

Explanation:

1) if the given radius is 5, it means, the distance between two opposite vertexes of square is 10 (AC=10 in the attachment);

2) If AC=10, then the required area is A=0.5*AC²; ⇒ A=50.