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Semenov [28]
3 years ago
7

What is the surface area of the cylinder? Express the answer in terms of Pi?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
4 0

Answer:

A

Step-by-step explanation:

<u>Lids</u>

It is not clear how many lids the cylinder has or perhaps it is a solid. I'll say it has 2 lids.

The surface area of one lid = pi * r^2

r = 4

The surface area of one lid is pi*4^2 =16 pi

The surface area of two lids is 32*pi

<u>Body</u>

Length of the body = pi * d

Length of the body = 8 * pi cm

Height of the body = 18 cm

Area = l*h

Area = 8pi * 18 cm

Area = 144 pi

<u>Total</u>

Total Area = 32 pi + 144pi

Area = 176 pi cm^2

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