Question

@Directrix

Answer 1

SA cone = B + pi * r * L where B is the area of the circular base and L is the slant height.

Answer 2

The way the diagram is drawn, I assume that 7 is the diameter of the base.

Answer 3

maybe?

Answer 4

Yeah

Answer 5

no that is the radius

Answer 6

SA cone = B + pi * r * L

SA cone = pi * (3.5)^2 + pi * 3.5 * 7.5

Answer 7

you take the radius and double it then multiply it by 3.14 or PI

Answer 8

That gives 120.95 approx.

Answer 9

With 7 as the radius which I believe is an incorrect interpretation, the result is 318.87 approx.