Free Printable Area of a circle

Worksheets

Area of a circle

Total questions: 15

Worksheet time: 11mins

Name

Class

Date

a line from the center point to the edge of the circle

diameter

radio

radius

What is the formula for area of a circle given the radius?

A = πr

A = 2πr

A = πd

A = πr²

a line that goes from one edge of the circle to another and crosses the center point

center

diameter

dime eater

radius

What is the radius of this circle?

What is the area of this circle?

25π

10π

5π

What is the area of this circle?

4π

8π

16π

What is the area of this circle?

12π

6π

144π

36π

The diameter of Carol's old records from the 80s is 12 inches. Which equation would help you determine the area?

A = 12π

A = 2π12

A = π(12²)

A = π(6²)

Find the exact area of a circle with radius of 9 inches.

9 π in²

18 π in²

81 π in²

36 π in²

10.

Find the exact area of a circle with diameter of 20 inches.

100 π in²

20 π in²

400 π in²

40 π in²

11.

Given the area of a circle is 16 π cm², what is the radius?

8 cm

4 cm

8 π cm

2 cm

12.

Find the area of the circle, leaving your answer in terms of π

4π cm²

2π cm²

16π cm²

8π cm²

13.

Find the area of the circle, leaving your answer in terms of π

64π cm²

8π cm²

16π cm²

32π cm²

14.

Find the area of the circle, leaving your answer in terms of π

121π cm²

22π cm²

484π cm²

121π m²

15.

Find the area of the circle, leaving your answer in terms of π

18π cm²

324π cm²

36π cm²

81π cm²

Reset

Area of a circle

Total questions: 15

Worksheet time: 11mins

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