Given
To find the scale factor of triangle DEF to triangle ABC.
Explanation:
It is known that,
When two triangles are similar the reduced ratio of any two corresponding sides is called the scale factor of the similar triangles.
From, the figure
[tex]\Delta ABC\text{ is similar to }\Delta DEF[/tex]
That implies,
[tex]\begin{gathered} Scale\text{ }factor=\frac{75}{15} \\ =\frac{5}{1} \\ =5:1 \end{gathered}[/tex]
Hence, the scale factor of triangle DEF to triangle ABC is 5:1.
