Question

Is 3, 4, 5 a Pythagorean Triple?

Answer 1

Yes.

Explanation:

Yes. A pythagorean triple is a sequence of integer numbers that solve the Pythagora's theorem.
It means that three numbers `a,b,c` are a pythagorean triples when

`sqrt(a^2+b^2)=c`

or, just to remove the square root and write it in a more elegant format

`a^2+b^2=c^2`.

With `3,4,5` we have that

`3^2+4^2=5^2`

`9+16=25`

`25=25`

The next pythagorean triple is `5,12,13`, you can verify it.