How do I determine which of theses triangles are right triangles or not?

Question

I am given a table with:

Traingle | Side 1| Side 2| Side 3|
Q |6 6 30
R |6 4 10
S |5 4 41
T |5 4 3

I Know the equation a^2+b^2=c^2, and have applied it to this, but cannot get an answer…Help me please.

Answer 1

try to understand the answers here. jiskha dot com/display.cgi?id=1354313665

(remove the spaces, change dot into an actual dot ( . ))