Given: y is the midpoint of XZ
prove: XY 1/2XZ

Given:

Y is the midpoint of XZ.

To prove:

Proof:

It is given that Y is the midpoint of XZ. It means Y divides the line segment XZ in two equal parts XY and YZ.

           ...(i)

Point Y lines on the segment XZ, so by segment addition theorem, we get

Divide both sides by 2.

Hence proved.

D. -6.1 - (-3.13) = -2.97