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8090 [49]
3 years ago
15

What is the diameter of a circle if the circumference is 30

Mathematics
2 answers:
slava [35]3 years ago
6 0
The Circumference formula for a circle is C=2(pi)r
30= Circum.
Pi=3.14
and the radius times two is the diameter.

So it should look like this

30=d(3.14)

Divide pi by both sides

and the Diameter equals around 9.55
patriot [66]3 years ago
3 0
2×pie×r = 30
r = 4.7746
d = r×2
d = 9.55
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