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Solnce55 [7]
3 years ago
14

find the circumference of a circle with a radius of 9, that's what it is asking, but I don't understand it, so can you help me?​

Mathematics
2 answers:
DanielleElmas [232]3 years ago
6 0

The formula for getting the circumference of a circle is C = 2\pi r where 'r' is the radius. Just plug in the value for the radius.

C = 2\pi * 9

We will also use 3.14 for PI.

C = 2 * 3.14 * 9

C = 56.52

Hope this helps!

Bess [88]3 years ago
6 0

Step-by-step explanation:

circumference of circle (c) = 2πr

= 2. 22/7 . 9cm

= 396cm/7

= 56.57cm

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