Dularie Dularie

22-03-2017
Mathematics

contestada

What is the radius of a circle that has circumference of 81pi square inches?
A. 9 inches
B. 18 inches
C. 40.5 inches
D. 81 inches

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nancyrojo626 nancyrojo626

22-03-2017

i think the answer is 18 in

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