Find the length of the side of an equilateral triangle if its perimeter is 6 dm 9 cm.
| April 11, 2021 | education
We will solve this task in steps and explain each of them in detail.
1) 6 decimeters 9 centimeters = 6 * 10 centimeters + 9 centimeters = 60 centimeters + 9 centimeters = 69 centimeters – the perimeter of an equilateral triangle;
2) 69: 3 = 23 centimeters – the length of the side of an equilateral triangle, since in an equilateral triangle all sides are equal.
Answer: 23 centimeters.
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