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inn [45]
3 years ago
13

Find the radius of a circle whose circumference is 31.4 centimeters. Approximate Π as 3.14.

Mathematics
2 answers:
AnnyKZ [126]3 years ago
4 0
Circumference is Diameter * 3.14

so D * 3.14 = 31.4

31.4 / 3.14 = 10 so the diameter is 10.

the radius is half of the diameter so radius = 5 centimeters.
Murljashka [212]3 years ago
3 0
(31.4/3.14)/2=5 because π=circumference/diameter
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