Answer:
The answer is below
Step-by-step explanation:
The question is not complete but i would solve a similar problem
Solution:
Triangles are shapes with three sides and three angles. Types of triangles are scalene, equilateral, isosceles triangles. Two triangles are similar if their corresponding sides have the same ratio and the angles of the two triangles are also equal.
Since the two triangles are similar, the ratio of their sides are equal, hence:
[tex]\frac{YZ}{BC}= \frac{XZ}{AC}\\\\but\ YZ=x, substituting\ gives:\\\\\frac{x}{3}=\frac{15}{5} \\\\x=\frac{15}{5} *3\\\\x=9 \\[/tex]