a cylinder is one metre high and it has 15.4 litres of liquid find its curved surface area
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hey mate here's ur answer
height of cylinder h = 1 m = 100 cm
let it's radius be x cm
volume of cylinder = 15.4 l
we know that
1 l = 1000 cm³
15.4 l = 15.4*1000 cm³
15.4 l = 15400 cm³
we know that
volume of cylinder = πr²h
πr²h = 15400
3.14r²(100) = 15400
314r² = 15400
r² = 15400/314
r² = 49 (approx.)
r = 7
now CSA of cylinder = 2πrh
= 2*3.14*7*100
= 14*314
= 4396 cm²
height of cylinder h = 1 m = 100 cm
let it's radius be x cm
volume of cylinder = 15.4 l
we know that
1 l = 1000 cm³
15.4 l = 15.4*1000 cm³
15.4 l = 15400 cm³
we know that
volume of cylinder = πr²h
πr²h = 15400
3.14r²(100) = 15400
314r² = 15400
r² = 15400/314
r² = 49 (approx.)
r = 7
now CSA of cylinder = 2πrh
= 2*3.14*7*100
= 14*314
= 4396 cm²
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