# Circle Worksheet

 1 a. The diameter of a circle is 7.6 m. Calculate its radius.
 1 b. d = 6.1 mmCalculate the area of the circle.
 2 a. The radius of a circle is 6.3 ft. Calculate its area.
 2 b. r = 8.4 cmCalculate the area of the circle.
 3 a. | | d = 2.3 ftCalculate the radius of the circle.
 3 b. The circumference of a circle is 5.5 in. Calculate its area.
 4 a. | | r = 4 mmCalculate the diameter of the circle.
 4 b. The diameter of a circle is 9.5 ft. Calculate its radius.
 5 a. The radius of a circle is 9.9 cm. Calculate its area.
 5 b. The radius of a circle is 1.2 ft. Calculate its circumference.
 6 a. | | d = 3 ftCalculate the area of the circle.
 6 b. A = 2.1 in2Calculate the circumference of the circle.
 7 a. A = 9.1 mm2Calculate the radius of the circle.
 7 b. r = 2 ftCalculate the diameter of the circle.
 8 a. The circumference of a circle is 8.2 m. Calculate its diameter.
 8 b. The circumference of a circle is 3.9 yd. Calculate its area.
 9 a. The radius of a circle is 5.4 m. Calculate its diameter.
 9 b. The circumference of a circle is 9.7 cm. Calculate its radius.
 10 a. | | d = 7.3 ftCalculate the radius of the circle.
 10 b. The area of a circle is 3.3 yd2. Calculate its radius.
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Answers are rounded to 2 decimals.

 1 a. 3.8 m
 1 b. 29.21 mm2
 2 a. 124.63 ft2
 2 b. 221.56 cm2
 3 a. 1.15 ft
 3 b. 2.41 in2
 4 a. 8 mm
 4 b. 4.75 ft
 5 a. 307.75 cm2
 5 b. 7.54 ft
 6 a. 7.07 ft2
 6 b. 5.14 in
 7 a. 1.7 mm
 7 b. 4 ft
 8 a. 2.61 m
 8 b. 1.21 yd2
 9 a. 10.8 m
 9 b. 1.54 cm
 10 a. 3.65 ft
 10 b. 1.03 yd

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