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12-03-2020
Mathematics

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What is the surface of the rectangular prism?

A.) 17.5 ft^2
B.) 11.0 ft^2
C.) 12.0 ft^2
D.) 5.5 ft^2

What is the surface of the rectangular prism A 175 ft2 B 110 ft2 C 120 ft2 D 55 ft2 class=

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jimthompson5910 jimthompson5910

12-03-2020

Answer: Choice A) 17.5 square feet

Work Shown:

L = length = 4 ft

W = width = 1.5 ft

H = height = 0.5 ft

S = surface area of rectangular prism

S = 2*(L*W + L*H + W*H)

S = 2*(4*1.5 + 4*0.5 + 1.5*0.5)

S = 17.5

The units for the surface are in square feet. This is because surface area is really the combination of all individual areas of each face.

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