### Home > PC > Chapter 8 > Lesson 8.2.3 > Problem 8-112

8-112.

The circle below has a radius of .

The perimeter of the rectangle.

Draw a diagonal. If the radius is 5, how long is the diagonal?

Use the Pythagorean Theorem to find the length

*L*.Perimeter = 2(width) + 2(length)

The area of the rectangle.

Area = (Length)(Width)