Question

ANSWER FAST PLEASE

Answer 1

Given:

The radius of the base of the given cone = 5 cm

The slant height of the cone = 19 cm

To find the surface area of the given cone.

Formula

The surface area pf the given cone is,

$SA = \pi rl+\pi r^{2}$

where, r be the radius and

l be the slant height.

Now,

Taking, r = 5, l = 19 and π = 3.14 we get,

$SA = (3.14)(5)(19)+(3.14)(5^2)$ sq cm

or, $SA = 298.3+78.5$ sq cm

or, $SA = 376.8$ sq cm

Rounding off to the nearest square centimeter, we get;

$SA=377 \ cm^2$

Hence,

The surface area of the cone is 377 sq cm.