1 Answer

Prosanto · Answer 1 · 2021-04-09T12:55:13+0000

Explanation:

Given that,

Radius of cone, r = 8 cm

Slant height of the cone, l = 17.9 cm

We need to find the surface area of a cone. The a cone, its surface area is given by :

$A=\pi r^2+\pi rl$

Putting the values of r and l in above formula such that,

$A=\pi (r^2+rl)\\\\A=(22)/(7)* ((8)^2+8* 17.9)\\\\A=651.2\ cm^2$

So, the surface area of a cone is
$651.2\ cm^2$ . Hence, this is the required solution.

Please log in or register to add a comment.