The side of an equilateral triangle is given by $l$ . Express its perimeter in terms of $l$ .

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Solution

Given that the side of an equilateral triangle is $l$ .
We know that all the sides of the equilateral triangle are of equal length and the perimeter of an equilateral triangle is equal to the sum of its all sides. $S o, P e r i m e t e r = l + l + l = 3 l$
Thus, the perimeter of an equilateral triangle is equal to $3 l$ .

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The side of an equilateral triangle is given by l. Express its perimeter in terms of l.

Given that the side of an equilateral triangle is l.We know that all the sides of the equilateral triangle are of equal length and the perimeter of an equilateral triangle is equal to the sum of its all sides. So,Perimeter=l+l+l=3lThus, the perimeter of an equilateral triangle is equal to 3l.

The side of an equilateral triangle is given by $l$ . Express its perimeter in terms of $l$ .