Basic Math Examples

 $\begin{array}{r} h = \\ l = \\ w = \end{array}$

Step 1

The surface area of a box is equal to the sum of the areas of each side of the box.

$2 \cdot (l e n g t h) \cdot (w i d t h) + 2 \cdot (l e n g t h) \cdot (h e i g h t) + 2 \cdot (w i d t h) \cdot (h e i g h t)$

Step 2

Substitute the values of the length $l$ , the width $w$ , and the height $h$ into the formula.

$2 \cdot l \cdot w + 2 \cdot l \cdot h + 2 \cdot w \cdot h$

Step 3

Multiply $2 w$ by $h$ .

$2 l w + 2 l h + 2 w h$