alkaline27
14.07.2020 •
Mathematics
What is the surface area of a cylinder
396 pi ft^2
180 pi ft^2
192 pi ft^2
252 pi ft^2
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Ответ:
252pi ft^2
Step-by-step explanation:
The surface area of a cylinder is given by
SA = 2 pi r^2 + 2pi rh
The diameter is 12 so the radius is 12/2 = 6
= 2 pi (6)^2 +2 pi *6*15
= 72 pi + 180pi
= 252pi ft^2
Ответ:
h cmnvj b
Step-by-step explanation: