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Mathematics 18 Online
brianagatica14:

The circumference of the base of a cone is 24 inches. The slant height of the cone is 20 inches. What is the surface area of the cone? Express the answer in terms of . 240 square inches 384 square inches 480 square inches 624 square inches

Gdeinward:

do you know where to start on this problem?

Gdeinward:

and does the original question ask for it in terms of pi?

brianagatica14:

yes and yes

Gdeinward:

well what would be the first step?

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