- 1. A circle has a radius of 20 cm, using 3.14 as the value of Pi what is the circle's circumference?
A) 6.37 cm
B) 62.8 cm
C) 23.14 cm
D) 125.6 cm
- 2. A circle has a radius of 15 m, using 3.14 as the value of Pi what is the circle's circumference?
A) 4.78 m
B) 47.1 m
C) 18.14 m
D) 94.2 m
- 3. A circle has a radius of 8.6 ft, using 3.14 as the value of Pi what is the circle's circumference?
A) 27.004 ft
B) 54.008 ft
C) 11.74 ft
D) 2.74 ft
- 4. A circle has a diameter of 9.8 cm, using 3.14 as the value of Pi what is the circle's circumference?
A) 30.772 cm
B) 3.12 cm
C) 15.386 cm
D) 12.94 cm
- 5. A circle has a diameter of 10 inches, using 3.14 as the value of Pi what is the circle's circumference?
A) 13.14 inches
B) 31.4 inches
C) 3.18 inches
D) 62.8 inches
- 6. A circle has a diameter of 11.2 yd, using 3.14 as the value of Pi what is the circle's circumference?
A) 17.584 yd
B) 3.57 yd
C) 35.168 yd
D) 70.336 yd
- 7. A circle has a radius of 5.4 cm, using 3.14 as the value of Pi what is the circle's circumference?
A) 16.956 cm
B) 8.54 cm
C) 33.912 cm
D) 8.478 cm
- 8. A circle has a circumference of 65.94 m, what is it's diameter?
A) 10.5 m
B) 21 m
C) 103.53 m
D) 207.05 m
- 9. A circle has a circumference of 20.724 ft, what is it's diameter?
A) 65.07 ft
B) 3.3 ft
C) 6.6 ft
D) 32.54 ft
- 10. A circle has a circumference of 15.7 inches, what is it's radius?
A) 24.649 inches
B) 5 inches
C) 49.298 inches
D) 2.5 inches
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