The figure below shows a round plate that is white with a 2-inch gray border around it What is the area of just the gray border?

Given:

Radius of small circle = 4 in.

Width of gray border = 2 in.

To find:

The area of the gray border.

Solution:

We have, radius of small circle:

The width of gray border is 2 in. So,t he radius of the larger circle is:

Now, area of gray border is the difference for area of larger circle and smaller circle.

Substituting in the above formula, we get

The area of the gray border is square inches. Therefore, the correct option is D.

answer: x=60