### Home > CALC > Chapter 8 > Lesson 8.1.2 > Problem 8-21

8-21.

Write an expression for the area of the shaded region below. The outside circle has a radius **R** and the inside circle has a radius **r**.

Area(large disk) − Area(small disk)

8-21.

Write an expression for the area of the shaded region below. The outside circle has a radius **R** and the inside circle has a radius **r**.

Area(large disk) − Area(small disk)