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Find the surface area of the cone in terms of π.

180π cm2


108π cm2


144π cm2


90π cm2

Find the surface area of the cone in terms of π. 180π cm2 108π cm2 144π cm2 90π cm-example-1
User Ammu
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1 Answer

6 votes

Answer:


54\pi \: {cm}^(2)

Explanation:

Given:

A cone

l = 15 cm

r (radius) = 3 cm

Find: A (surface area) - ?


a(surface) = \pi {r}^(2) + \pi * r * l


a(surface) = \pi * {3}^(2) + \pi * 3 * 15 = 9\pi + 45\pi = 54\pi \: {cm}^(2)

User Ptr
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