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

User Tobias Etter
by
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2 Answers

6 votes
(31.4/3.14)/2=5 because π=circumference/diameter
User TheMomax
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7.6k points
2 votes
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.
User Vijay Krishna
by
8.3k points
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