If the side of an equilateral triangle is $l$, then express the perimeter of the triangle in terms of $l$.

Given:

The side of an equilateral triangle is $l$.
To do:

We have to express the perimeter of the triangle in terms of $l$.

Solution:

We know that,

The perimeter of a triangle is equal to the sum of the lengths of the sides.

The sides of an equilateral triangle are equal in length.

Therefore,

Perimter of the given triangle $=l+l+l=3l$.

The perimeter of the given triangle in terms of $l$ is $3l$.

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Updated on: 10-Oct-2022

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