Question

PLZZZZ HELP!!XC

The diameter of a coin is 22mm.
What is the approximate area of the coin?

A. 34.54mm to the power of 2

B. 69.08mm to the power of 2

C. 94.99mm to the power of 2

D. 379.94mm to the power of 2

Answer 1

Diameter = 22 mm
Radius = diameter/2 = 22/2 = 11 mm
Area = pi r^2
Area = pi (11^2) = 380.133 mm^2

No option corresponds to the answer 380.133

If we round off 380.133 and 379.94 it then becomes 380. So answer D.