ANSWER:
I will attach the image so you can better understand.
4/3=slope = Definition of slope
4/3 = 16/12 = Triangle A is similar to Triangle B
Explanation:
If slope of triangles are equal than Triangle A is similar to triangle B.
so, in statement
=
when we simplify
we get
=
then the reason for this statement is "If slope of triangles are equal"
And the definition of slope in general is
![m=(y)/(x)](https://img.qammunity.org/2021/formulas/mathematics/high-school/55ndjn9l33r7srqpf4l0qnum1jpjdrcmvd.png)
so, for the statement
=slope , the reason is Definition of slope.