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Mathematics
Li
14 February, 15:20
What is the formula for the area of a cylinder?
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Myles Quinn
14 February, 17:01
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2 pi*r^2 + 2 * pi * r * h
Step-by-step explanation:
I will assume that you are looking for surface area
We need to find the area of the top and the bottom, which is the area of a circle
top: pi * r^2
Bottom: pi r^2
Then the side which is the circumference times the height (it is a rectangle)
side: 2 * pi * r * h
Add them together to get the surface area
SA = pi * r^2 + pi * r^2 + 2 * pi * r * h
= 2 pi*r^2 + 2 * pi * r * h
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