Find the length of the line segment joining the midpoints of the segments AB and CD, where A=(1,3),B=(2,6),C=(4,7) and D=(3,4).

First: find the coordinates of the midpoints of AB and CD The midpoint of AB is (0.5,4.5) The midpoint of CD is (3.5,6.5) Second: use the distance formula to find the distance between the midpoints The difference in X is 3 The difference in Y is 2 \[distance=\sqrt{3^2+2^2}=\sqrt{13}\]

peter,The midpoint of AB is (0.5,4.5) how do u get that pls?

midpoint is it not x1+x2/2which is 1.5

and 4.5

and I think you'll find the midpoint of CD is incorrectly stated I think it should be (3.5, 5.5)

So, now is the task to find the distance between the points with coordinates (3/2 , 9/2) and (7/2 , 11/2) ? @lissafi

oh, sorry 0.5 and 6.5 were wrong. thank you for checking my math.

oh, sorry 0.5 and 6.5 were wrong. thank you for checking my math. The process itself is right though.

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