Question

A right circular cone has a slant height of 17 cm and a diameter of 16 cm. Find the altitude of the cone.

Answer 1

Answer:

We know, the curved surface area of a right circular cone =πrl.

Slant height l=

h

2

+r

2

⇒l=(

8

2

+15

2

)

⇒l=17 cm.

Now substitute the value in above equation, we have,

the curved surface area =π×8×17

=136π cm

2

.