Question

The height and radius of a cone are 3 and 4cm respectively. Find it's curved surface area.

Answer 1

r= 4cm
h= 3cm
l=_/(r^2+h^2)
l= _/(9+16)=5cm
curved surface area of cone= 22×4×5/7
=440/7cm^2
=62.84cm^2

Answer 2

Hey there!

First we'll calculate the Slant height (l) of the Cone.
Then,

We'll work for C.S.A. of Cone which is = πrl

COMPLETE SOLUTION IS DONE IN THE ABOVE PIC.

HOPE IT HELPED ^_^
#EshanSingh1
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