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3 years ago

If the area of a circle measures 25π cm2, what is the circumference of the circle in terms of π?

2 answers:

5 0

Two formulas here:

Area = πr²

Circumference = 2<span>πr

So first we solve for r from area:

25</span>π = πr²

25 = r²

r = 5

So we know that radius is 5 cm.

Now substitute r to 5 in circumference formula:

C = 2π(5) = 10π

Final answer: 10π cm

Hope this helps.

zhannawk [14.2K]3 years ago

5 0

Answer:

10 $\pi$ cm

Step-by-step explanation:

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I'm really not sure how to go about solving this algebraic equation, please help! .513 = (2x)^2 / (.05-x)

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