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# What is the total surface area of a right cone if the slant height is 8 inches and the diameter is 8 inches aswell?

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What is the total surface area of a right cone if the slant height is 8 inches and the diameter is 8 inches aswell?

Jun 12, 2020

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Here's the formula:

$$A = \pi r(r+\sqrt {h^2+r^2})$$

Is that helpful?

And I think h represents the height not slant height, but I am not one hundred percent sure.

Jun 12, 2020