When trying to prove that two triangles are congruent there are three congruency rules SAS, ASA and SSS. From the looks of things though I would say it would be the third one because just from the way you named the triangles I could tell that the two angles could correspond.
Answer:
60%
the reason its 60 percent is because if u think of 20,000 as just 20 its much easier
1/2=5/10
2/5=4/10
6/10
so from least to greatest will be : 2/5 1/2 6/10 :)))))