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The diameter of a circle is 8 cm what is its area? ​
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3 votes
The diameter of a circle is 8 cm what is its area?
​

User Josh Knechtel
by
6.9k points

1 Answer

2 votes

A = πr^2 and d = 2r.

So r = 8/2 = 4 cm.

Now use the first formula

A = π(4 cm)^2 = 50.265 cm^2

User Wolfgang
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6.4k points
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