Question

If the solid cone of radius r and height h is placed over a solid cylinder of the same radius and height find the curved surface area of the combined figure.

Answer 1

Answer:

πr{(√r²+h²) +2h +r}

Step-by-step explanation:

total surface area= curved surface area of cone + curved surface area of                        

                                  cylinder + area of base

C.S.A of cone= πrl

l²=r²+h²

l=√(r²+h²)

C.S.A of cylinder= 2πrh

area of base= πr²

T.S.A= πrl + 2πrh + πr²

           πr×{√(r²+h²) + 2h + r}