# Find the Surface Area box (14)(2)(10) h=14l=2w=10
The surface area of a box is equal to the sum of the areas of each side of the box.
2⋅(length)⋅(width)+2⋅(length)⋅(height)+2⋅(width)⋅(height)
Substitute the values of the length l=2, the width w=10, and the height h=14 into the formula.
2⋅2⋅10+2⋅2⋅14+2⋅10⋅14
Simplify each term.
Multiply 2 by 2.
4⋅10+2⋅2⋅14+2⋅10⋅14
Multiply 4 by 10.
40+2⋅2⋅14+2⋅10⋅14
Multiply 2 by 2.
40+4⋅14+2⋅10⋅14
Multiply 4 by 14.
40+56+2⋅10⋅14
Multiply 2 by 10.
40+56+20⋅14
Multiply 20 by 14.
40+56+280
40+56+280
Simplify by adding numbers.
Add 40 and 56.
96+280
Add 96 and 280.
376
376
Find the Surface Area box (14)(2)(10)

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