Question

surface area of a cone? 12cm high and radius is 5
answer options are
90 pi
65pi
120pi
115pi

Answer 1

90 pi

Answer 2

or.... pi(r) sqrt(r^2 + h^2)

Answer 3

5pi sqrt(169)

5*13pi = 65pi

Answer 4

its either that or 90; i cant recall if surface area includes the base area or not

Answer 5

90!

Answer 6

[Base Area] + 1/2 × Perimeter × [Slant Length]