As shown in the figure, ab = 12cm, point C is on the line AB, and AC = 10cm, m and N are the midpoint of AC and BC respectively

As shown in the figure, ab = 12cm, point C is on the line AB, and AC = 10cm, m and N are the midpoint of AC and BC respectively

bc=ab-ac=2
MC = AC divided by 2 = 5
NC equals BC divided by 2 = 1
mn=mc+nc=6