Question

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

Answer 1

Two formulas here:

Area = πr²

Circumference = 2πr

So first we solve for r from area:

25π = 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.

Answer 2

Answer:

10$\pi$ cm

Step-by-step explanation: