09-10-2020
Mathematics

contestada

What's the circumference of a circle with a diameter of 9 inches?

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09-10-2020

Answer:

9pi

Step-by-step explanation:

circumference= 2 (pi) (r)

radius = diameter \ 2

r = 9 \ 2 = 4.5in.

c = 2 (pi) (4.5)

c = 9pi or 28.3in.

Hope this helps!

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