Answer: 22 units.
Step-by-step explanation:
Here FSB and ZDR are two triangles.
In which, FS = 38 unit, FB = 55 unit, ZD = 15.2 unit and ZR = x unit.
Also, [tex]\triangle FSB\sim \triangle ZDR[/tex]
Thus, By the property of similarity,
[tex]\frac{FS}{ZD} = \frac{FB}{ZR}[/tex]
⇒ [tex]\frac{38}{15.2} = \frac{55}{x}[/tex]
⇒ [tex]x = \frac{55\times 15.2}{38}[/tex]
⇒ [tex]x = \frac{836}{38}[/tex]
⇒ [tex]x = 22[/tex]
Thus, ZR = 22 unit.
