The area of a circle is 132.7 square cm. Find the diameter.
2 answers:
Answer:
13
Step-by-step explanation:
To find the diameter, use the diameter formula.
d = 2r (r = radius)
In this case, we don't have a radius so to find the radius, use the radius formula.
r = (A = area)
So, r = square root of 132.7/pi
r is approximately 6.5
Now we have the radius so we can find the diameter:
d = 2(6.5)
d = 13
Diameter is 13
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