Given that C=2πr.
a. Find C when π=3.142 & r=50.
b. Find r when C=286 & π=3⅛
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Answer:
C = 310
r = 46
Step-by-step explanation:
2πr = 2 x 3.1 x 50
C = 310
r = C/2π = 286 / 2 x 3.1 = 46 (approx.)
r = 46
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