SOLUTION: Please help me with my question: What is the total surface area of a closed box 4cm high, 25cm long and 20cm wide? Thank you!

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Question 1084414: Please help me with my question:
What is the total surface area of a closed box 4cm high, 25cm long and 20cm wide?
Thank you!
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
Given Dimensions:
Length = 25 cm L = 25
Width = 20 cm W = 20
Height = 4 cm H = 4

The formula for the surface area (SA) of the rectangular prism, aka box, is
SA = 2*(L*W + L*H + W*H)

Plug in the given values above
SA = 2*(L*W + L*H + W*H)
SA = 2*(25*20 + 25*4 + 20*4)
SA = 2*(500 + 100 + 80)
SA = 2*(600 + 80)
SA = 2*(680)
SA = 1360
The units for the surface area are in square centimeters.

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Final Answer: 1360 square centimeters

As an alternative notation, you can write "square centimeters" as "cm^2"