Find the Surface Area box (3)(8)(5)

Math
h=3l=8w=5
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=8, the width w=5, and the height h=3 into the formula.
2⋅8⋅5+2⋅8⋅3+2⋅5⋅3
Simplify each term.
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Multiply 2 by 8.
16⋅5+2⋅8⋅3+2⋅5⋅3
Multiply 16 by 5.
80+2⋅8⋅3+2⋅5⋅3
Multiply 2 by 8.
80+16⋅3+2⋅5⋅3
Multiply 16 by 3.
80+48+2⋅5⋅3
Multiply 2 by 5.
80+48+10⋅3
Multiply 10 by 3.
80+48+30
80+48+30
Simplify by adding numbers.
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Add 80 and 48.
128+30
Add 128 and 30.
158
158
Find the Surface Area box (3)(8)(5)

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