Find the scale factor of figure A to Figure B. Explain why please

Answer:
5/9
Step-by-step explanation:
Determine which sides are congruent (36 maps to 20)
Divide the resulting length by the original (20/36=5/9)
The scale factor is 5/9.
We can check this by doing
14/25.2=140/252=70/126=35/63=5/9