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saveliy_v [14]
3 years ago
7

The perimeter of a rectangle is 48 centimeters. The relationship between the length, the width, and the perimeter of the rectang

le can be described with the equation: 2 • length + 2 • width = 48. Find the length, in centimeters, if the width is
A.20.4
B. 24.1
C.21.4
D.22.3
Mathematics
1 answer:
vaieri [72.5K]3 years ago
8 0
Probably A I am not really sure I am trying sorry if it is wrong
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Answer:

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Step-by-step explanation:

<u>Surface Area of a Cylinder</u>

Given a right cylinder of base radius r and height h, the surface area is calculated as follows:

S=2\pi r^2+2\pi r h

The cylindrical tank has a height of h=1 m and a base diameter of 140 cm. The radius is half the diameter, thus r=140/2 = 70 cm = 0.7 m. Substituting:

S=2\pi 0.7^2+2\pi (0.7)(1)

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S=2.38\pi

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Correct answer is C.

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Step-by-step explanation:

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