Question

What is the surface area of the cone a. 460 in^2 b. 390 in^2 c. 425 in^2 d. 360 in^2

Answer 1

Answer:

Surface area of the cone = 360π in²

Step-by-step explanation:

Formula for the surface area of a cone is,

Surface area = πr(r + l)

Here 'r' = radius of the circular base of the cone

l = Lateral height of the cone

Now we substitute the values in the formula from the figure attached,

Surface area = π(10)(10 + 26)

                     = 360π in²

Therefore, surface area of the cone will be 360π in².