Question

segment addition postulate
find $overline{xy}$.
1.
x 7 z 9 y

Explanation:

Step1: Recall segment - addition postulate

If point $Z$ lies on $\overline{XY}$, then $XY=XZ + ZY$.

Step2: Identify given lengths

We are given that $XZ = 7$ and $ZY=9$.

Step3: Calculate $XY$

$XY=XZ + ZY=7 + 9=16$.

Answer:

$16$