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

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

Add 40 and 56.

96+280

Add 96 and 280.

376

376

Find the Surface Area box (14)(2)(10)