Question

Are 2.7, 3.6, and 4.5 a pythagorean triple

Answer 1

They are because 2.7 squared + 3.6 squared = 4.5 squared (=20.25) 

Pythagoras Theorem is that a squared + b squared = c squared 

So the 2 smallest numbers squared will equal the larger one squared if it is a pythagoreom triple