Question

19. A right circular cone of radius 3
cm, has a curved surface area of 47.1
cm2. Find the volume of the cone.
(Use
$\pi$
= 3.14)
​

Answer 1

Answer:

r = 3cm

curved surface area = 47.1 cm²

πrl =  47.1 cm²

3.14× 3×l =  47.1 cm²

l =  47.1/ 3.14×3

l =  5cm

h = √5²-3²

h = √25-9 =√16

h = 4cm

volume = 1/3 πr²h

= 1/3 x 3.14 x 3 x 3 x 4

= 37.68 cm³

Answer 2

hope this helps you

thanks for giving this easy question