Question

The curved surface area of a cylinder is 1/3 of its total surface area. If it's curved surface area us 1232 cm^2.

Answer 1

C.S.A of cylinder =1320 cm  

d=21 cm

r=10.5 cm

h=?

C.S.A =1320

=2πrh=1320

=2× 7

22×10.5×h=1320

⇒h= 1320/60

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h=20 cm