which of the following is correct expression for the surface area of cylindrical part of boiler
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Answered by
4
Answer:
Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h
That's the top, the bottom, and the paper label that wraps around the middle. You can find the area of the top (or the bottom). That's the formula for area of a circle (pi r2). Since there is both a top and a bottom, that gets multiplied by two.
Step-by-step explanation:
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Answered by
1
Answer:
hi dude
the answer is 4πr^2
Step-by-step explanation:
area of hemispherical area = 2πr^2 +2πr^2
=4πr^2
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