Circle Worksheet

1 a.

r = 1.3 ft

Calculate the circumference of the circle.

 

 

1 b.

||
r = 9.4 mm

Calculate the circumference of the circle.

 

 

2 a.

C = 7.3 in

Calculate the radius of the circle.

 

 

2 b.

C = 8.8 in

Calculate the radius of the circle.

 

 

3 a.

C = 7.1 cm

Calculate the area of the circle.

 

 

3 b. The diameter of a circle is 2.2 yd. Calculate its circumference.

 

 

4 a.

C = 1.6 in

Calculate the diameter of the circle.

 

 

4 b. The circumference of a circle is 1.6 m. Calculate its radius.

 

 

5 a. The diameter of a circle is 2.8 ft. Calculate its circumference.

 

 

5 b.

d = 7.4 mm

Calculate the circumference of the circle.

 

 

6 a.

A = 8 yd2

Calculate the radius of the circle.

 

 

6 b. The diameter of a circle is 9.4 mm. Calculate its radius.

 

 

7 a. The diameter of a circle is 6.9 m. Calculate its radius.

 

 

7 b.

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d = 3.4 ft

Calculate the area of the circle.

 

 

8 a.

A = 3.5 mm2

Calculate the radius of the circle.

 

 

8 b. The area of a circle is 3.3 mm2. Calculate its diameter.

 

 

9 a. The circumference of a circle is 4.1 m. Calculate its diameter.

 

 

9 b.

r = 3.1 mm

Calculate the diameter of the circle.

 

 

10 a. The area of a circle is 7.1 yd2. Calculate its circumference.

 

 

10 b. The circumference of a circle is 3.7 ft. Calculate its area.

 

 

Page 2

Answer Key

Answers are rounded to 2 decimals.

1 a.  8.16 ft
1 b.  59.03 mm
2 a.  1.16 in
2 b.  1.4 in
3 a.  4.01 cm2
3 b.  6.91 yd
4 a.  0.51 in
4 b.  0.25 m
5 a.  8.79 ft
5 b.  23.24 mm
6 a.  1.6 yd
6 b.  4.7 mm
7 a.  3.45 m
7 b.  9.07 ft2
8 a.  1.06 mm
8 b.  2.05 mm
9 a.  1.31 m
9 b.  6.2 mm
10 a.  9.44 yd
10 b.  1.09 ft2


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