The perimeter of the triangle is 38 m, and the length of its sides is 5: 6: 8. How many meters is the big side.

To find the sides of a triangle, we sum up the parts of the lengths of its sides:

5 + 6 + 8 = 19 pieces.

The sides of the triangle are 19 parts.

Let’s find how many centimeters are in each part. We divide the perimeter of the triangle – 39 centimeters by the number of its parts:

38: 19 = 2 centimeters.

Each part has 2 centimeters.

Find the sides of the triangle:

5 * 2 = 10 centimeters.

6 * 2 = 12 centimeters.

8 * 2 = 16 centimeters.

The largest side is 16 centimeters.

Answer: The largest side is 16 centimeters.