Put points A, B, C, and D on a line consecutively, so that AB = BC = CD = 6 cm. Find the distance between the midpoints M and N of segments AB

and

CD

.

I NEED CN PLS HELP

12 cm

Explanation:

Given that: AB = 6 cm, BC = 6 cm, CD = 6 cm.

Point M divides AB into two equal parts, so that'

AM = MB = 3 cm

Also, point N divides CD into two equal parts, so that;

CN = ND = 3 cm

Therefore, distance between the midpoints M and N of segments AB and CD is given as;

MN = MB + BC + CN

      = 3 + 6 + 3

      = 12

Thus, the distance between the midpoints MN is 12 cm.

the answer is use of support  

the answer for 3 is b and the answer for 4 is d