Question

What is the surface area formula for this shape and if you could explain that would help me a lot ​

Answer 1

I think it's A

Explanation:

The reason is because the circle is pi r ^2 but the wedge is some kind of fraction of a circle with degree 1, like area times circumference. The question should say, which of the following is the most probable formula for SA.

Answer 2

`\large\boxed{C.\ S.A.=\pi r^2+\pi rl}`

Explanation:

It's a net of a cone.

The formula of a surface area of a cone:

`S.A.=\pi r^2+\pi rl`