Question

hi there

A toy is in the form of a cone mounted on a hemisphere. The diameter of the base and the height of the cone are 6 cm and 4 cm respectively. Determine the surface area of the toy.
(use π = 3.14)

Answer 1

Given that, diameter(d) is 6 cm and height(h) is 4 cm.
⇒ radius(r)
Also, slant height(l) = √ r2 + h2
⇒ l = √ 32 + 42
⇒ l = √ 9 + 16
⇒ l = √ 25
⇒ l = 5
And, surface area of the toy = surface area of the cone + surface area of hemisphere
⇒ Surface area of toy = πrl + 2πr2
= πr(l + 2r)

= 103.71 cm2

Answer 2

Hey mate....

Hope this helps❤