Question

What is the total surface area of a cone if the height of the cone is 6 cm.and 10 cm.​

Answer 1

Correct Question

What is the total surface area of a cone if the slant height is 7cm and radius is 6cm

Given:

The slant height of cone=7cm

Solution:

$\rm\bold{\boxed{T.S.A=\pi\:r\:l}}$

$\rm{\implies T.S.A_{cone}=\dfrac{22}{7}*7*6}$

$\rm{\implies T.S.A_{cone}=22*6}$

$\rm\purple{\implies T.S.A_{cone}=132\:cm^2}$