Question

Find the C.S.A of a right circular cone whose slant height is 20 cm and height is 16 cm. Guys plz someone answer this with explanation. Its urgent.​

Answer 1

Answer:

Slant height of cone = 20 cm

Height of cone = 16 cm

Radius of cone = r=

$\sqrt{ {l}^{2} } - \sqrt{ {h}^{2} }$

r = sq.root (20)^2 - (16)^2

=sq.root 400 - 256

= sq.root 144

Radius = 12 cm

CSA of cone =

$\pi \: rl$

= 22/7 × 12 × 20

= 5280/7

CSA of cone = 754.28 cm^2

PLEASE MARK IT BRAINILIEST