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lesya [120]
4 years ago
5

find the total surface area of this cone. round to the nearest tenth(my last question of my homework and I keep getting it wrong

)​

Mathematics
2 answers:
Nezavi [6.7K]4 years ago
7 0

Answer:

how would you find the lateral area of this cone?

Step-by-step explanation:

DedPeter [7]4 years ago
3 0

Answer:

The surface area is approx. 1017.9 in^2.

Step-by-step explanation:

Total surface area of cone = πrl + πr^2. Since the radius is 12 in. and the slant height is 15 in, substitute 12 for r and 15 for l.

A = π(12)(15) + π(12)^2

    = 180π + 144π

    = 324π in^2

    ≈ 1017.9 in^2

Hope this helps!

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