The side of an equilateral triangle is shown by l. Express the perimeter of the equilateral triangle using l.

Explanation

We will be using the formula
for the perimeter of the equilateral triangle

The side of an equilateral
triangle is givenaslunits.
So, perimeter of the
equilateral triangle =` 3 xx `side-
length=` 3 xx l `units= 3l units
Therefore, 3l units is the perimeter of the equilateral triangle