I am refering to this quote: >4 is the length and 5 the diagonal. What is the breadth ? Its size is not known. 4 times 4 is 16. 5 times 5 is 25. You take 16 fr

I am refering to this quote: >4 is the length and 5 the diagonal. What is the breadth ? Its size is not known. 4 times 4 is 16. 5 times 5 is 25. You take 16 from 25 and there remains 9. What times what shall I take in order to get 9 ? 3 times 3 is 9. 3 is the breadth. That doesn't appear to be in your link – am I wrong? I only see numbers there and it appears to be talking about something else entirely.