The length of one side of the triangle is 0.35 centimeters, the length of the other side is 45%

The length of one side of the triangle is 0.35 centimeters, the length of the other side is 45% of the perimeter, the length of the third side is 8.4 centimeters. Find the perimeter of the triangle.

Let’s express 45% in terms of the coefficient:

45/100 = 0.45.

Let’s take the perimeter of the triangle through 1 R. Then, given that one side is equal to 0.35 P, the second – 0.45 P, we calculate what part of the perimeter is the third side:

1P – 0.35 R – 0.45 R = 0.2 R – third party.

Knowing that the length of the third side is 8.4 cm, we find the perimeter:

8.4 / 0.2 = 42 cm – the perimeter of this triangle.

Answer: 42 cm is the perimeter of this triangle.