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never was good at geometry help with this 

 

ft 

ft2

ft3

slim22  Nov 29, 2017
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r = 6, d = 12, a = \(9\pi\)

helperid1839321  Nov 29, 2017
 #2
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Circumference = Diameter x Pi

C = 12 x Pi - Feet

D = 12 Feet 

Radius = Diameter / 2

R = 12 / 2 = 6 Feet

Area =Radius^2 x Pi

Area =6^2 x 3.141592

Area =36Pi - Square feet, or ft^2.

Guest Nov 29, 2017

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