Question

the perimeter of a trangle formed by joining the mid-points of the side of a trangle will be ​

Answer 1

Answer:

This picture is just example and explanation is answer my friend

Step-by-step explanation:

By mid point theorem the line joining the midpoints of two sides of a triangle is half the third side. Therefore it follows that the perimeter of the triangle formed by joining the midpoints of the sides of a triangle is half that of the original triangle. (1/2)(12+15+7) = 17 cms.