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Last updated at March 23, 2023 by Teachoo
Ex 11.2, 1 The side of an equilateral triangle is shown by l. Express the perimeter of the equilateral triangle using l. Given that Side of equilateral triangle = l We know that In equilateral ∆ ABC All Sides are equal ∴ AB = BC = AC = l So, Perimeter = Sum of all Sides = l + l + l = 3 l