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2 years ago

13

Find the total surface area of this cone

1 answer:

fenix001 [56]2 years ago

3 0

Answer:

S.A. = 1,017.36

Step-by-step explanation:

S.A. = $\pi r^{2} + \pi rl$

12 x 12 x 3.14 = 452.16

3.14 x 12 x 15 = 565.2

565.2 + 452.16 = 1,017.36

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