1 of 8 · circles-c01
A circle has radius 9. What is the diameter?
Practice: Around and inside
Camp
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Around and inside · Camp
2 of 8 · circles-c02
A circle has diameter 10. Using π = 3.14, what is the circumference?
3 of 8 · circles-c03
A circle has radius 4. Using π = 3.14, what is the circumference?
4 of 8 · circles-c04
A circle has radius 5. Using π = 3.14, what is the area?
5 of 8 · circles-c05
A circle has diameter 8. Using π = 3.14, what is the area?
6 of 8 · circles-c06
A circle has circumference 31.4. Using π = 3.14, what is the diameter?
7 of 8 · circles-c07
A semicircle has diameter 10. Using π = 3.14, what is the area?
8 of 8 · circles-c08
A circle has radius 6. What is the area? Leave π in the answer instead of using 3.14. For example, eight times π is typed 8pi.