Question

please give the detailed solution of this

Answer 1

Answer:

Radius of cone and the hemisphere is 3.5/2cm

The total height of the top is 5cm

Therefore h of cone =5-3.5/2

=6.5/2

surface area of the hemisphere=2π(3.5/2)^2

Surface area of the cone=πrl

=π(3.5/2)l

L=√h^2+r^2

Add the both the surface area and u will get the answer