Circle Worksheet

1 a.

d = 9.5 m

Calculate the circumference of the circle.

 

 
1 b.

A = 6.8 m2

Calculate the radius of the circle.

 

 
2 a. The area of a circle is 9.9 m2. Calculate its diameter.

 

 
2 b. The diameter of a circle is 7.4 ft. Calculate its area.

 

 
3 a.

r = 6.9 yd

Calculate the area of the circle.

 

 
3 b. The diameter of a circle is 7.5 in. Calculate its radius.

 

 
4 a.

||
d = 2.2 mm

Calculate the radius of the circle.

 

 
4 b.

d = 7.8 in

Calculate the circumference of the circle.

 

 
5 a. The radius of a circle is 6.3 mm. Calculate its diameter.

 

 
5 b.

A = 4.6 ft2

Calculate the circumference of the circle.

 

 
6 a.

C = 2.5 mm

Calculate the radius of the circle.

 

 
6 b. The diameter of a circle is 2.3 in. Calculate its circumference.

 

 
7 a. The circumference of a circle is 3.6 mm. Calculate its radius.

 

 
7 b.

||
d = 6.9 yd

Calculate the radius of the circle.

 

 
8 a. The circumference of a circle is 1.3 mm. Calculate its diameter.

 

 
8 b. The radius of a circle is 9.3 ft. Calculate its diameter.

 

 
9 a. The radius of a circle is 6.5 mm. Calculate its diameter.

 

 
9 b.

C = 7.3 m

Calculate the area of the circle.

 

 
10 a.

d = 5.9 m

Calculate the radius of the circle.

 

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

 

 
Page 2

Answer Key

Answers are rounded to 2 decimals.

1 a.  29.83 m
1 b.  1.47 m
2 a.  3.55 m
2 b.  42.99 ft2
3 a.  149.5 yd2
3 b.  3.75 in
4 a.  1.1 mm
4 b.  24.49 in
5 a.  12.6 mm
5 b.  7.6 ft
6 a.  0.4 mm
6 b.  7.22 in
7 a.  0.57 mm
7 b.  3.45 yd
8 a.  0.41 mm
8 b.  18.6 ft
9 a.  13 mm
9 b.  4.24 m2
10 a.  2.95 m
10 b.  1.09 m2

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