A penny is 19 millimeters wide. What is the area of the face of the coin? Round to the nearest hundredth. (Use 3.14 for pi.)

Respuesta :

To find the area of the penny, you will use the formula for finding the area of circle.

A = p x r^2
      3.14 x 9.5^2
A = 283.39

The area of the face of the coin is 283.39 square millimeters.