Nathan F.
asked 03/22/19
The cicumference of Humberto's bike tire is 81.64 inches. What is the radius of Humberto's bike tire? Use 3.14 for pi.
Circumference = 2pi(r)
81.64 = 2 x 3.14 x r
r = 81.64/2 x 3.14
r = 13
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