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11 questions
What are the formulas for circumference of a circle?
C = π r
C = π d
C = 2 π r
C = 2 π d
How do you find the area of a circle?
πd2
2πr
2π2
πr2
Find the perimeter of the semicircular region. Round your answer to the nearest hundredth.
23.13 m
28.26 m
14.13 m
56.52 m
What is the area of the square that is not covered by the pink circle? (use 3.14 for pi)
78.5 in2
21.5 in2
31.4 in2
68.6 in2
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