2 figures are congruent if at least 2 sides are the same length, there angles are the same, etc
We know a or b != 0
but a-b==0 so both are the same unknown number
b/a must = 1
so
a/b is equivalent to b/a as a/b=1 as well.
So the last answer choice.
Answer:
2.3
Step-by-step explanation: