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Diagram LabelValueUnitsRadius of the Pool Cover9feetarea18Diameter of the Pool CoverfeetfeetCircumference of the Pool Coveror TT.Area of the Pool Coversquare feet

User Aska
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1 Answer

4 votes

First, since the diameter of the pool cover is 18ft, the circumference can be found with the following equation:


C=\pi\cdot d

then, the circumference is:


C=3.14\cdot18=56.52ft

next, we can find the area with the following formula:


A=\pi\cdot r^2

since the radius of the pool cover is 9 ft, we have:


A=(3.14)(9)^2=(3.14)(81)=254.34ft^2

therefore, the circumference is 56.52ft and the area is 254.34ft^2

User Cyndy
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