Brainliest answer  to the right answer and 30 points!

10.5^2 + 20.8^2 = 110.25 + 432.64 = 542.89
23.3^2 = 542.89 
Right triangle

20.1^2 = 524.41
6^2 + 20.1^2 = 36 + 404.01 = 440.01
Not a right triangle

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct