Question

a toy is in the former of a cone mounted on a hemisphere the diameter of the base and the height of the cone are 8 cm and 3 cm respectively determine the surface area of the toy​

Answer 1

Answer:

surface area of the toy =113.12

Step-by-step explanation:

It is given that

Radius = 4cm

height of the cone = 3cm

By pythagoras theoram ,

slant height of the cone = 5cm

• Surface area of the toy = C.S.A. of the cone + C.S.A of the hemisphere

=> πrl + 2πr^2

=> πr (l + 2r)

=> (22➗7 )✖4 (5+ 4)

=> (88➗7)(9)

=> 792➗7

=> 113.12 square cm