Question

In triangle PQR, if angleQ=angleP=45degree. Which is the longest side and why?

Answer 1

angle r is 90 degree
then longest side is PQ

Answer 2

∠p=45⁰ 
∠q = 45°
∠r = x
angle sum property of a triangle-  45° +45°+x = 180°
                                                       90°+ x = 180°
                                                         x = 180° - 90° = 90°
∠r = 90°
the side opposite to the largest angle is the longest,
QP IS THE LONGEST SIDE