The area of smallest square that can circumscribe a circle of area 616 cm2 is -----
A
1936 cm2
B
784 cm2
C
196 cm2
D
484 cm2
Correct Answer: 784 cm2
We know, circle of area = πr2 According to the question, πr2 = 616⇒r2 = 616π⇒r2 = 196∴r = 14 Length of the Squae = 28 Area of squae = 282 = 784 cm2