Question 1160291: Given that c=2pir
A)find c when pi =3.142 and r=50
B)find r when c=286 and pi=3 1/2 Found 3 solutions by Boreal, Alan3354, ikleyn:Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website! a. 2pi*r=2 pi*50=314.2 units
b. r=c/2pi
=286/7=40.86 units Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website! Why do you change the value of pi?
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The buybull says pi = 3
That's closer than 3.5
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3.142 is off by only 0.013%
22/7 is off by 0.004%
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3.5 is just silly.