# Find the length of an equilateral triangle if its perimeter is 6 dm 9cm.

January 31, 2021 | education

| In order to find the length of an equilateral triangle, if its perimeter is 6 dm 9 cm, you should remember the rule.

According to this rule, in an equilateral triangle, all sides are equal.

Thus, in order to find the length of an equilateral triangle, if its perimeter is known, this perimeter must be divided by the number of sides of the triangle, that is, by 3.

Now we write down the expression and find out the length of the side of the corresponding triangle.

6 dm 9 cm: 3 = 2 dm 3 cm.

Answer: 2 dm 3 cm.

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