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I need a genius to help me please!!!!!!!!!

find the surface area of the cone(s?)
give your answer like "6π" so ignore the π
and write steps too
and no... the answer is not 720"
question worth 15 pointa

I need a genius to help me please!!!!!!!!! find the surface area of the cone(s?) give-example-1
User Unplugged
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2 Answers

6 votes
I think it's 240 but I'm not sure
User Wdscxsj
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5 votes
There are 2 cones in the picture that are joined together at their base.

The radius (r) of the cone = 10 ft

The height (h) of the cone = 24 ft

Thus, the slant height (l) of the cone =
\sqrt{ h^(2) + r^(2) } =
\sqrt{ 24^(2) + 10^(2)} = √(576 + 100) = √(676) = 26 ft

Now, we have all the values, we can calculate the area.

The surface area of a cone including the base =
\pi r^(2) + \pi rl

But since we only need the area without the base so the surface area =
\pi rl =
\pi *10 *26 =
260 \pi

That is the area of one cone without the base area.

The area of both the cones =
2*260 \pi = 520 \pi
User Npretto
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