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3 years ago

5

A circle has an area of 81pi square units. What is the diameter of the circle

2 answers:

Sonja [21]3 years ago

6 0

The diameter of the circle is 18 unit which is A. Hope it help!

Oksanka [162]3 years ago

6 0

Area of circle (Formula) = πr^2
<span>81π = πr^2 </span>
<span>r^2 = 81 </span>
<span>radius = 9 </span>
<span>
</span><span>Hope this helps!</span>

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