What is the surface area of the right cone below?

OPTION A

Step-by-step explanation:

The formula that is used to calculate the surface area of a cone is:

Where "r" is the radius and "l" is the slant height.

You can identify in the figure that:

Then, you need to substitute these values into the formula .

Therefore, the surface area of this right cone is:

i got 86 for this

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