Question

Find the area of a square with the radius 6√2 m. Round to the nearest whole number.

A)51m^2
B)72m^2
C)144m^2
D)196m^2

My answer is B.

Answer 1

I have a hunch that you mean a circle, not a square. Squares do not have radii.
If so:
A = pi r^2
= (22/7)(36)(2)
about 6*36 or 216

On the other hand if it is a square with side (not radius) = 6 sqrt 2
then
36*2 = 72 so B

Answer 2

I just found out that a square can have a radius. But I don't know how to solve this problem.

http://sciencing.com/calculate-radius-square-2806.html

Answer 3

Interesting article, but since when does √72 = 2.913 ??

2.913 = √√72

Answer 4

well, the distance from center to corner by that definition is 6 sqrt 2
so the diagonal of the square is 12 sqrt 2
so the side of the square is 12
so the area is 144

Answer 5

Thank you Anonymous