The surface area of a cone is equal to the area of the base plus the area of the cone.

Substitute the values of the length and height into the formula. Pi is approximately equal to .

Move to the left of .

Raise to the power of .

Raise to the power of .

Add and .

Apply the distributive property.

Multiply by .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Find the Surface Area cone (9)(5)