Atriangle has measurements of 18, 34, and 39 units. is it a right triangle?

yes
no
not enough information to tell

Check if the numbers fit the Pythagoras theorem:_

39^2 =  1521
34^2 =  1156
18^2 =  324

Now check if 1521 = 1156 + 324
If it does then we have a right angled triangle

39^2 =  1521
34^2 =  1156
18^2 =  324

Now check if 1521 = 1156 + 324
If it does then we have a right angled triangle

Okay so it will be 1123