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what is the surface area a circular spa with a 12 foot diameter with formula

Verified Answer :

ChillinFool

the area of a circle is found with A=\(\pi\)\(r^{2}\)

the r stands for radius the radius is half the diameter so it would be 6

A=\(\pi\)\(6^{2}\)
A=3.14*36
A=113.4
the surface area of your spa is 113.4 feet

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