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aleksandrvk [35]
3 years ago
8

Find the radius of a circle if the circumference is 66cm​

Mathematics
2 answers:
FrozenT [24]3 years ago
7 0

Answer:

Approximately 10.5, or 10.5095541.

Step-by-step explanation:

To find the radius given the circumference of a circle, we first have to divide the circumference by pi, or an estimation of 3.14. This will give us the diameter.

Since we know that the radius of a circle is simply half the diameter, we divide the number we got from the problem above by 2. This will give you your answer!

Dennis_Churaev [7]3 years ago
4 0

Answer:

r = 10.50

Step-by-step explanation:

Circumference =

2\pi \: r

66 = 2\pi \: r

\frac{66}{2\pi}  = r

r = 10.5

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