The lengths of the sides of the triangle are 15 cm, 17 cm and 13 cm. Find the perimeter of the triangle

| April 9, 2021 | education

The lengths of the sides of the triangle are 15 cm, 17 cm and 13 cm. Find the perimeter of the triangle, the length of which is 2 times the lengths of the sides of the given triangle.

Let’s solve this task by actions with explanations.
1) 15 * 2 = 30 centimeters – the length of the side of the triangle is twice the side of this triangle 15 centimeters long;
2) 17 * 2 = 34 centimeters – the length of the side of the triangle is twice the side of this triangle 17 centimeters long;
3) 13 * 2 = 26 centimeters – the length of the side of the triangle is twice the side of this triangle 13 centimeters long;
4) 30 + 34 + 26 = 64 + 26 = 90 centimeters – the perimeter of the triangle, the length of the sides, which is 2 times the length of the sides of this triangle.
Answer: 90 centimeters.



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