Using the diagram, answer the following questions.

- What is the radius of the circle?
- What is the diameter of the circle?
- What is the circumference of the circle (express answer in terms of pi)?
- What is the circumference of the circle (round answer to nearest hundredth)?
- What is the area of the circle (express answer in terms of pi)?
- What is the area of the circle (round answer to nearest hundredth)?

Click to Reveal Answers.

- What is the radius of the circle? 11
- What is the diameter of the circle? 22
- What is the circumference of the circle (express answer in terms of pi)? 22π
- What is the circumference of the circle (round answer to nearest hundredth)? 69.12
- What is the area of the circle (express answer in terms of pi)? 121π
- What is the area of the circle (round answer to nearest hundredth)? 380.13