Given:
Consider the dimensions of the rectangle are
and
.
To find:
The perimeter in terms of x, of the rectangle.
Solution:
Let the length of the rectangle be
and the width of the rectangle is
units.
The perimeter of a rectangle is:

Where, l is the length and w is the width of the rectangle.
Substituting
and
in the above formula, we get




Therefore, the perimeter of the rectangle is
units.