A square, with perimeter 80, is inscribed in a circle. What is the area of the circle?
Answers
A) 400π	B) 200π	C) 250π	D) 300π	E) 150π
Area of circuscribed circle = pi/2*area of square   Area of square = (80/4)^2 = 20^2= 400   Area of circle = pi/2*400=200pi   Answer : 200π
<result>B</result>
A square, with perimeter 80, is inscribed in a circle. What is the area of the circle?