Question

if the volume of a cylinder is 112 by centimetre cube and its radius is 4 cm then find the curved surface area of the cylinder ​

Answer 1

Answer:

V=Π*r*r*h

Step-by-step explanation:

so

112=Π*16h

or

h=112/(16Π)=2.228cm

area of curved surface

=2Πrh=2Π*4*2.228

=56 sq cm ANSWER

Answer 2

Answer:

56 cm^2

given that volume = 112cm^3

volume of a cylinder= πr^2h

= 22/7×4^2×x=112cm^3

=22/7×16×x=112cm^3

=x= 112×7/22×1/16

=x= 7×7/22

=x=49/22

LSA of a cylinder=2πrh

=2×22/7×4×49/22

=2×4×7

=56cm^2.

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