Question

The height of a cylinder is equal to it's diameter. If the surface area of the cylinder is 528/7cm², find its height??.

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Answer 1

Answer:

Please refer to attachment

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Answer 2

I taking surface area to be curved surface area

Height = diameter

CSA=

$2\pi \: rh \\ or \\ \pi \: dh$

Therefore 528/7=22/7*2h

2h=528/7*7/22

h=24/2 since 528/22=24 and 7 and1/7

h=12 cancel each other

Hope it helps

Plz note i have taken surface to be curved