Answer:
4 : 9 is an equivalent ratio of 8 : 18.
Step-by-step explanation:
hope this helps
If we want a complex fraction, we can take a simple fraction and multiply it by some other fraction. in out case, these can be obtained if we mupltiply 1/4 by some other fraction for example:
1/2:

Or we could expess one of the numbers as a fraction:

The given above is are triangles, as per the proof the line segments on top and bottom part are parallel. Also, it is given that two pairs of the angles of the triangles are congruent.
The triangles also share one common side, CA. Since, this side is between the angles the postulate that will prove the congruence of the triangles is ASA.
The answer to this item is the third choice.