Determine whether the given triangle is a right triangle.
a 6.2
b 8.1
c 12.3
Use Pythagoras' Theorem:
12.3^2 =8.1^2 + 6.2^2
151.29 =65.61 + 38.44
151.29 = 104.05 Since they are NOT equal, it therefore cannot be a right triangle.
+153 
