11)
Given data:
The given pair of traingles.
The expression for the ratio of the coorresponding sides is,
[tex]\begin{gathered} \frac{5}{x}=\frac{2}{1} \\ 5=2x \\ x=2.5 \end{gathered}[/tex]
Thus, the value of x is 2.5.
13)
Given data:
The given pair of rectangles.
The expression for the ratio of the corresponding sides is,
[tex]\begin{gathered} \frac{3}{x}=\frac{4}{6} \\ 18=4x \\ x=\frac{18}{4} \\ =4.5 \end{gathered}[/tex]
Thus, the value of x is 4.5.
