if height of the cylinder is equal to its diameter &its volume is 58212cm2then, find its c.s.a &t.s.a of cylinder
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volume of the cylinder is given by
pi*r^2*h
but 2r = h
the volume becomes
pi*2*r^3=58212
r= 21
c.s.a. = 2*pi*r*h= 2*3.14*21*2*21=5541.769
t.s.a. = c.s.a.+2*pi*r^2 = 5541.769+2*3.14*21^2 = 8312.65
pi*r^2*h
but 2r = h
the volume becomes
pi*2*r^3=58212
r= 21
c.s.a. = 2*pi*r*h= 2*3.14*21*2*21=5541.769
t.s.a. = c.s.a.+2*pi*r^2 = 5541.769+2*3.14*21^2 = 8312.65
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I hope this helps. see the solution in image.
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