Answer:
No, it is not a right triangle.
Explanation:
10.5, 36, and 50 do not form a right triangle. This can be tested using the Pythagorean theorem.
10.5^2=110.25
36^2= 1296
50^2=2500
If this was a right triangle, the 10.5 squared and 36 squared would have to equal 50 squared.