dondon45 dondon45

22-06-2016
Mathematics

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What is the radius of a circle that has a circumference of 81.64 meters?

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kiyagibbskg kiyagibbskg

22-06-2016

r≈12.99
c = Circumference=pid= 81.64 To find the radius of a circle you can just divide the diameter by 2.
pi = 3.14
d = diameter=c/3.14 Pi is always 3.14 or 22/7.
d = 81.64/3.14
d = 26
r= radius= 26/2
radius=13 cm

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