PowerPrep Question - Comparing sides of 2 triangles

if there are 2 triangles ABC and DEF
Can we compare the sides BC and EF? And say which one is greater if we know the angles opposite to them?

Is the property of largest angle opp largest side applicable for comparison of 2 different triangles too? I remember there was a question on GREGmat, but am unable to find it

It depends on the exact question.

CAVEAT : This is from Power prep +

Look carefully on what’s common between the two triangles. In particular, c and d.