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scoray [572]
3 years ago
14

What is the radius of a circle with a circumference measuring 24 pie cm?

Mathematics
1 answer:
Tpy6a [65]3 years ago
5 0
By the way, it's pi, not pie. just wanted you to know as you may lose marks in tests for spelling (but i may be wrong)

we know circumference is pi multiplied by the diameter.
the diameter is 2x the radius
we can re-arrange the first fact to get:
diameter (or 2x radius) = circumference divided by pi.
since the circumference is 24pi we can cancel off pi from the circumference (24pi) and pi.
now we have the diameter = 24
since the diameter is 2x the radius you divide both sides by 2 and get:
radius=12cm
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Answer:

The volume of the metal used is 5277.9 cm³.

Step-by-step explanation:

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V = \pi r^{2} h

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Hence, the volume is:

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Therefore, the volume of the metal used is 5277.9 cm³.

I hope it helps you!                                                      

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