AB = 20, point C is a point of line AB, and Mn is the midpoint of AC and BC respectively I———I———I————I————I A M C N B

AB = 20, point C is a point of line AB, and Mn is the midpoint of AC and BC respectively I———I———I————I————I A M C N B


MC=1/2AC NC=1/2BC MN=MC+NC=1/2(AC+BC)=1/2AB=10



Mathematical problems known line AB = 10cm, C is a point on the straight line AB, m, n are the midpoint of AC, BC, Mn
Thank you ~ well done. It seems that there are many situations
Hope wood has plagiarized


AB=AC+BC
Because m and N are the midpoint of AC and BC respectively
So AC = 2cm, BC = 2cn
AB=2M+2CN =2(CM+CN)=2MN
10cm =2MN
So Mn = 5

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