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Mathematics
Grace Holmes
26 January, 19:14
What is the radius of 81π square inches
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Junior Kent
26 January, 21:41
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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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