Question

find the radius of a cylinder whose total surface area is
$11000 {m}^{2} and \: height \: is \: 15m$


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Answer 1

Tsa of cylinder=11000 m2

2πrh=11000

2x22/7xrx15=11000

r=11000x7/22x1/2x1/15

r=1000x7/2x1/2x1/15

r=250x7/15

r=50x7/3

r=350/3

r=123.99