### Home > INT2 > Chapter 11 > Lesson 11.2.2 > Problem 11-67

11-67.

What is the volume of each solid below?

cylinder with a hole

Volume = (area of base)(height)

You can find the area of the base by subtracting the area of the inner circle from the area of the larger circle.

regular octagonal prism

Refer to lesson 8.4.1 Math Notes Box.