Explanation
Similar triangles are triangles that have the same shape, but their sizes may vary
So for the triangles ABC AND AKY
We can compare similar sides using the ratio:
[tex]\begin{gathered} \frac{AC}{AY}=\frac{7}{2} \\ \\ where \\ AC=28 \\ \\ \frac{28}{AY}=\frac{7}{2} \\ \end{gathered}[/tex]
If we solve for AY
[tex]\begin{gathered} AY=\frac{28\times2}{7} \\ \\ AY=4\times2 \\ \\ AY=8 \end{gathered}[/tex]
The answer is
