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leva [86]
1 year ago
14

Suppose a gas tank is in the shape of a cylinder. The tank is 20 feet long and 8 feet in diameter. Find the amount of metal used

to construct the tank. (Hint: use 3.14 for pi)A) 384.5 ft^2B) 1028 ft^2C) 602.9 ft^2D) 1570.4 ft^2
Mathematics
1 answer:
Alexeev081 [22]1 year ago
5 0

Answer:

Given that,

a gas tank is in the shape of a cylinder. The tank is 20 feet long and 8 feet in diameter.

To find the amount of metal used to construct the tank.

That is, to find surface area of a tank.

we know that,

Surface area of a cylinder is

2\pi r(h+r)

Radius=8/2=4 feet

we get,

Surface area of a tank is,

=2\times3.14\times4(20+4)=6.28\times96=602.88\approx602.9ft^2

Answer is: option (C): 602.9 ft^2

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