Pythagorean square

I have just a large rope and I want to build a right angle. How can I do ?
Build a ring with the rope, with 12 evenly spaced knots, span in a triangular shape with sides (3,4,5).
This triangle is a right triangle as 32 + 42 = 52 (reverse of Pythagora theorem) !
The given values are the smallest possible, but we can get other values.

Find all Pyhtagorean triples with maximum value up to 20
Solution

Table
Details

 

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