# Diameter and Circumference (Grade 9)

Print Test
(Only the test content will print)

Name: | Date: |
---|

## Diameter and Circumference

1.

What is the circumference of a circle with a diameter of 4 inches?

- 13.5 in
- 12.6 in
- 11.2 in
- 12.3 in

2.

What is the radius of a circle with a circumference of 30.4 feet?

- 4.8 ft
- 3.4 ft
- 6.3 ft
- 9.7 ft

3.

Charlotte measures the distance from the center of a circular garden to its edge and finds it is 43 meters. How long is the path which goes around the outside of the garden?

- 90 m
- 135 m
- 180 m
- 270 m

4.

What is the circumference of a circle with a diameter of 18 inches?

- 14.2 in
- 28.3 in
- 56.5 in
- 63.8 in

5.

The hand on a clock is 4 inches long and just fits inside the clock face. What distance does the tip of the clock hand travel during each revolution?

- 25 in
- 13 in
- 4 in
- 8 in

6.

The blade on a helicopter is 3.2 meters long. If the blades turn at 450 revolutions per minute how fast is the tip of the bade traveling?

- 151 m/s
- 70 m/s
- 430 m/s
- 15.1 m/s

7.

Find the diameter of a circle with a perimeter of 25.

- 3
- 6
- 8
- 7

8.

Find the circumference of a circle with a radius of [math]3/(2pi)[/math].

- [math](3pi^2)/2[/math]
- [math]3[/math]
- [math]2/3[/math]
- [math].4[/math]

9.

What is the radius of a circle with a circumference of 14?

- [math](2pi)/14[/math]
- [math](2pi)/7[/math]
- [math]14/pi[/math]
- [math]7/pi[/math]

10.

What is the distance around a circular track with a radius of 67 feet?

- 421 ft
- 360 ft
- 118 ft
- 512 ft

You need to be a HelpTeaching.com member to access free printables.

Already a member? Log in for access. | Go Back To Previous Page

Already a member? Log in for access. | Go Back To Previous Page