Question

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Answer 1

Answer:

use curved surface area of cylinder....2pie r h .....get h and substitute in volume formula

Answer 2

The Curved surface area of the cylinder is 264m^2

That is 2πrh = 264

2 x 22/7 x r x h = 264

r x h = 264 x 7/2 x 22

After solving, we get

h = 42/r ...(1)

Volume of cylinder = 924m^3

That is πr^2h = 924

22/7 x r^2 x h = 924

After solving we get

h = 294/r^2 ...(2)

From (1) and (2)...

42/r = 294/r^2

By cross multiplying,

42 x r x r = 294 x r

Transposing 42 x r,

r = 294 x r / 42 x r

So we get, r = 7m

Therefore diameter = 2 x r = 2 x 7 = 14m...

Hope you understand

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