# One side of the triangle is 42 cm, which is 2.4 cm shorter than the length of the other side.

July 26, 2021 | education

| **One side of the triangle is 42 cm, which is 2.4 cm shorter than the length of the other side. The third party is 35% of the amount of the first and second. Find the perimeter of the triangle.**

To find the perimeter of a triangle, you need to find the lengths of each side P = a + b + c:

1) 42 + 2.4 = 44.4 centimeters length of the second side,

2) 44.4 + 42 = 86.4 centimeters the sum of the lengths of the first and second sides,

3) 35%: 100% = 0.35 expressed as a decimal percentage,

4) 0.35 * 86.4 = 30.24 centimeters third side length,

5) 42 + 44.4 + 30.24 = 86.4 + 30.24 = 116.64 centimeters perimeter of the triangle.

Answer: The perimeter of the triangle is 116.64 centimeters.

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