Hi, I understand the way that Greg solved this question, but I approached it in a different way. Could anyone please confirm if I also did it the correct way?
Basically, after calculating the angles I equated the proportion of angles with the proportion of sides. For example, n / m = 100 (degrees) / 60 (degrees) and calculated n = 5m/3
Similarly, n = 5p
Then in the expression m^2 + p^2, I substituted the above two values and came to the same answer that n^2 is greater than m^2 + p^2
Is this method correct?
This bit is not true. If you want a side and angle relationship then you’d require the law of sines (beyond the scope of the GRE).