Free Printable Area of Circle and Circumference

Worksheets

Area of Circle and Circumference

Total questions: 20

Worksheet time: 20mins

Name

Class

Date

What is the distance around a circle called?

the radius

the diameter

the circumference

Find the circumference of the circle.

4.082 m

8.164 m

1.32665 m

5.3066 m

Find Circumference.

87.92 cm

43.96 cm

21.98 cm

3.14 cm

Which is the correct formula for the area of a circle?

A = π r²

A = 2π r²

A=πd

A=π d²

A circular mirror has a 2 inch frame around it. The mirror itself is 8 inches in diameter. What is the area of the frame? Use 3.14 for pi.

(a)

This formula is used to find what?

Area

Circumference

what is the circumference of this circle ?

3.14 cm

37.68 cm

24 cm

68.4 cm

Find the area of each circle when given the circumference.
Circumference = 6π yd

6 yd

19 yd

18.8 yd

36 yd

Match the following definitions to the terms:

Area of a circle

How much space a circle takes up

Circumference of a circle

The distance around a circle

Units of area

square units (units²)

Units of circumference

feet, cm, inches

$\pi$

$\frac{C}{d}$

10.

Find the circumference of each circle when given the area.
area = 64π mi²

C = 32 mi

C = 42.5 mi

C = 50.3 mi

C = 64 mi

11.

The circumference of a circle is 28.26 cm. What is closest to the area of the circle.

254.34 cm²

14.13 cm²

63.6 cm²

12.

Identify the parts of the circle and show how you would find the area and circumference.

Categorize the following

$5\ cm$

$10\ cm\$

$C\ =\ \pi\cdot10$

$A\ =\ \pi\cdot5^2$

radius

diameter

circumference

area

13.

What is the area of a circle?

halfway through a circle

a line through the center of a circle

the amount of space inside of the circle

the distance around a circle

14.

Find the area of the circle.

176.6 cm²

706.5 cm²

23.6 cm²

50.24 cm²

15.

Find the circumference, rounding your answer to 1 decimal place.

34.9mm

31.4mm

34.5mm

17.3mm

16.

Find the circumference of the circle.

14.13 cm

63.56 cm

28.26 cm

127.17 cm

17.

Diameter 14 inches
Find the area of a circle.

615.44 in²

153.86 in²

43.96 in²

87.92 in²

18.

Which formulas can be used to find the circumference of a circle?

C = π r²

C = 2π r

C = π d

C = 2πd

19.

What is the radius of this circle?

20.

What part of a circle does the red line represent?