# A Susan B. Anthony dollar coin has a diameter of 26.50 millimeters. What is the area of the coin to the nearest hundredth?

##### 1 Answer

Jan 27, 2017

#### Explanation:

Coin's diameter is 26.50 millimetres

using the unit of measurement of

So its radius is

Area of a circle is

So the area is

Using a calculator this is: 551.54586....

For the nearest hundredth we have the cut off point:

The digit immediately to the right of the cut of point is classified as 5 or more. So the digit to the left of the cut off point is raised by 1 and all those to the right made into 0