The sides of the triangle are 6m, 9m, 13m. Find the sides of the triangle formed by the middle lines of this triangle.

The midline of a triangle connects the midpoints of the sides of the triangle, parallel to the third side of the triangle and equal to half of it.
Consider a triangle ABC. We mark the middle of the side AB with point D, the sides of BC with point K, sides of AC with point M. Connect these points. Formed triangle MDK, the sides of which are the midlines of the triangle ABC.
Let’s answer the question of the problem.
1. What is the MD side?
BC / 2 = 6/2 = 3 m.
2. What is the DK side equal to?
AC / 2 = 9/2 = 4.5 m.
3. What is the side of the CM?
AB / 2 = 13/2 = 6.5 m.
Answer: The sides of the triangle are 3; 4.5; and 6.5 meters.