A square ABCD is inscribed in a circle of radius ‘r’. Find the area of the square.
Given: Radius of circle = r
Diagonal of Square = 2r
∵ Side of Square = 
∴ Side = 
= √2r
Area of Square = Side × Side
= √2r × √2r
= 2r2
Hence, the area of square is ‘2r2’ square units.
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