The perimeter of a square is equal to the radius of a circle having area 39424 sq cm, what is the area of square?	Pick:
A) 1225 sq cm	B) 441 sq cm	C) 784 sq cm	D) Can’t say	E) None of these
Let the side of square =a cm and radius of circle=r cm   Given, 4a= r   Also Area of square= Pi*r^2= 39424, r^2=12544 or r=112   So a= r/4= 112/4= 
<gadget id="calculator">112/4</gadget>
<output>28</output>
28   Hence Area of square=a^2=28^2=784 cm^2   ANSWER:784 sq cm
<result>C</result>
The perimeter of a square is equal to the radius of a circle having area 39424 sq cm, what is the area of square?