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Mrac [35]
3 years ago
8

What is the radius of 81π square inches​

Mathematics
1 answer:
MrRa [10]3 years ago
3 0
It is 9 inches because the formula for the area of a circle is πr2 where the r represents the radius of the circle

The pi can be canceled out =

πr2 and 81 π leaving with

R2 and 81

The r2 represents a square number. So square root 81 and you would result in 9 as your answer
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