One side of the triangle is 1.3 cm smaller than the other and 1.6 more than the third.

One side of the triangle is 1.3 cm smaller than the other and 1.6 more than the third. Find the perimeter of a triangle if its large side is 5.2 cm

Let us calculate how many centimeters the side of the triangle average in length will be equal to, if we know, according to the conditions from this problem, that the length of the larger side is 5.2 centimeters:

5.2 – 1.3 = 3.9.

Let’s calculate how many centimeters the side of the triangle will be equal in length, if it is known, according to the conditions of this problem, that the average side is 1.6 centimeters longer than it:

3.9 – 1.6 = 2.3.

Let’s calculate the perimeter of the figure:

5.2 + 3.9 + 2.3 = 11.4.

Answer: The perimeter is 11.4 cm.