Given that total surface area of cylinder is 154 cm². If its radius is 4 cm, find its height (round

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04 Feb 2020 Area

Given that total surface area of cylinder is 154 cm². If its radius is 4 cm, find its height (round the decimal value to the nearest hundredth).

OPtion

1) 2.23
2) 2.33
3) 2.43
4) 2.13
5) 2.03
6) 3.13
7) 3.23
8) 3.33
9) 3.43
10) None of these

Solution

T. S. A. =2πrh+2πr2
154 = 2π4 (4+h)
Solving we get h = 2.13 cm

Correct Option: 4 Best Solution (0)