D. 9 cm
SOLUTION:
C = 2πr
56.52 = 2 * 3.14 * r
56.52 = 6.28r
6.28r = 56.52
r = 9 cm
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Answers & Comments
D. 9 cm
SOLUTION:
C = 2πr
56.52 = 2 * 3.14 * r
56.52 = 6.28r
6.28r = 56.52
r = 9 cm