# Find the Surface Area box (3)(11)(14) h=3l=11w=14
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=11, the width w=14, and the height h=3 into the formula.
2⋅11⋅14+2⋅11⋅3+2⋅14⋅3
Simplify each term.
Multiply 2 by 11.
22⋅14+2⋅11⋅3+2⋅14⋅3
Multiply 22 by 14.
308+2⋅11⋅3+2⋅14⋅3
Multiply 2 by 11.
308+22⋅3+2⋅14⋅3
Multiply 22 by 3.
308+66+2⋅14⋅3
Multiply 2 by 14.
308+66+28⋅3
Multiply 28 by 3.
308+66+84
308+66+84
Simplify by adding numbers.
Add 308 and 66.
374+84
Add 374 and 84.
458
458
Find the Surface Area box (3)(11)(14)

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