Answer :

Well, 10<49.5+50.5, 49.5<10+50.5 and 50.5<10+49.5
Because these conditions are obeyed, you have a triangle.
A right triangle requires that [tex]50.5^2=10^2+49.5^2 \\ 2550.25=100+2450.25[/tex]
which is true. So, the triangle has a right angle.