The side of an equilateral triangle is 7 cm. Calculate the perimeter of this triangle.

The perimeter of a triangle is equal to the sum of all its sides. We are given an equilateral triangle with sides equal to 7 cm.So the perimeter of an equilateral triangle = 7 cm + 7 cm + 7 cm = 7 cm * 3 = 21 cm.
Answer: the perimeter is 21 cm.



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