Answer:
x = 28 units
Step-by-step explanation:
We need to find the value of x.
The given triangles are similar triangles.
So, the ratio of corresponding sides are same.
[tex]\frac{x}{10}=\frac{42}{15}[/tex]
Solving this equation we can find value of x.
[tex]\frac{x}{10}=\frac{42}{15}\\Cross\:Multiply\\15x=42*10\\15x=420\\x=\frac{420}{15}\\x=28[/tex]
So, we get x = 28
So, we get the value of x: x = 28 units
