as per this example below for the [ 3-4-5 Pythagorus Triple ] .

Let us now bring in the { Square-Root of [ 2 ] over [ 2 ] } via :
for illustration purposes .
And we take note here that :
Thus , Pythagorus Triples can provide important [ Anchor Points on the Unit Circle ] :
And our development of a Linkage System for Pythagorus Triples here may very well help further .