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Sveta_85 [38]
3 years ago
5

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

Mathematics
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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