(photo) i need !
what is the surface area of the right cone below?

The correct option is C.

Step-by-step explanation:

From the given figure it is clear that the radius of the cone is 3 units and slant height of the cone is 12 units.

The surface area of the right cone is

Where, r is radius, l is slant height.

Substitute r=3 and l=12 in the above formula.

The surface area of the given right cone is 45π units².

Therefore the correct option is C.

where is the image?

step-by-step explanation: