Question

2. Find the total surface area of a cone, if its slant height
diameter of its base is 24 m.​

Answer 1

Answer:

Step-by-step explanation:

Given : slant height of cone ;l = 21m

Diameter of cone = 24m

therefore radius ; r= 12 m

as we know the total surface area of a cone is

T.S.A.= \pi r (l+r) = \dfrac{22}{7} \times 12( 21+12)= 1244.57 m^2

Hence, the total surface area the cone is 1244.57 m²