Question:The area of largest possible square inscribed in a circle of unit radius (in sq. units) is : 

A 2 
B π 
C `2sqrt(2) π` 
D `4sqrt(2) π` 

+ Answer
A 

+ Explanation
Diagonal of square = Diameter of circle = 2 units.

:. Area of the square` = 1/2 xx (diagonal)^2`

    `= (1/2 xx 2 xx 2) = 2 sq.` units

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Irin Moni

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