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A circle has an area of 49•3.14 square units. What is the diameter of the circle?
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A circle has an area of 49•3.14 square units. What is the diameter of the circle?

User Jupeter
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1 Answer

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The area of a circle is πr².

First we will solve for r, radius, and then double it to find the diameter.

153.86 = (3.14)(r)²
49 = r²
√49 = r
7 = r

Now the diameter:

7*2 = 14

So the diameter is 14 units.

Hope this helps :)
User Aneisha
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