Question

The total surface area of a cylinder of radius 7cm is 88cm².Find the height?

Answer 1

Answer:

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Answer 2

Answer:

Given:

Total surface area of a cylinder, TSA = 88cm²

radius, r = 7cm

TSA = 88

$2\pi \: r(r + h) = 88$

2 × (22/7) × 7 ( 7+h ) = 88

44(7+h) = 88

7 + h = 88/44

7 + h = 2

h = -5

h= 5cm ( since height cannot be negative)

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