The perimeter of a triangle is 48 cm, the length of one side is 15 cm and the other is 18 cm.
| June 23, 2021 | education
The perimeter of a triangle is 48 cm, the length of one side is 15 cm and the other is 18 cm. Find the length of the third side of this triangle.
Answer: 15 cm length of the third side of the triangle
Decision:
1) find the sum of the lengths of the two sides
15 cm + 18 cm = 33 cm
2) we find the length of the third side of the triangle, knowing that the perimeter of the triangle is equal to the sum of the lengths of its sides, which means that the length of the third side of the triangle will be equal to the difference between the perimeter of the triangle and its two sides
48 cm – 33 cm = 15 cm
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