find the height of a cylinder whose radius is 1.5 cm and the total surface area is 297 cm ^2
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TSA of cyclinder = 2πr ( h + r )
radius = 1.5
area = 297
2 × 22 / 7 × 1.5 ( h + 1.5 ) = 297
h + 1.5 = 297 × 7 / 22 × 2 × 1.5
h + 1.5 = 2079 / 66
h + 1.5 = 31.5
h = 31.5 - 1.5
h = 30 cm
hope it helps.....
TSA of cyclinder = 2πr ( h + r )
radius = 1.5
area = 297
2 × 22 / 7 × 1.5 ( h + 1.5 ) = 297
h + 1.5 = 297 × 7 / 22 × 2 × 1.5
h + 1.5 = 2079 / 66
h + 1.5 = 31.5
h = 31.5 - 1.5
h = 30 cm
hope it helps.....
nikitagarg9:
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