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Question

The total surface area of a solid right cylinder of radius $$r$$ and height $$h$$ is $$2\pi r(h+r)$$


A
True
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B
False
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C
Either
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D
Neither
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Solution

The correct option is A True
The curved surface area for a cylinder is $$2(\pi)rh$$
Total surface area = curved surface area +area of the two circles$$= 2(\pi)rh+2(\pi)r^2$$
$$=2(\pi)r(r+h)$$

Mathematics

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