Respuesta :

Given R is between G and Z.

GZ=12 inches

RG=3 inches.

Since, R is between G and Z,

[tex]GZ=GR+RZ[/tex]

It follows

[tex]\begin{gathered} RZ=GZ-GR \\ =12-3 \\ =9 \end{gathered}[/tex]

So, RZ is 9 inches.