If the area of a circle measures 25π cm2, what is the circumference of the circle in terms of π?
2 answers:
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.
Answer:
10
cm
Step-by-step explanation:
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