The perimeter of an equilateral triangle is 27cm. Find the length of the side of the triangle.

Answer: The side length of an equilateral triangle is 9 centimeters
Decision:
an equilateral triangle is such a triangle, all sides and angles of which are equal to each other.
As you know, the perimeter of a triangle is calculated as the sum of all its sides. Since the problem deals with an equilateral triangle, the perimeter of this triangle is found as the length of one of its sides multiplied by 3.
Thus, to calculate the length of one of its sides, it is necessary to divide the perimeter of an equilateral triangle by 3. We obtain that the length of one side of an equilateral triangle is 27: 3 = 9 centimeters.



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