May 21st, 2019, 07:45 PM  #11 
Member Joined: Mar 2019 From: TTF area Posts: 83 Thanks: 1  
May 21st, 2019, 08:04 PM  #12 
Member Joined: Oct 2018 From: USA Posts: 63 Thanks: 45 Math Focus: Algebraic Geometry  Although in the specific case of $r^{2}= p^{2} + q^{2}$ you get $r$, what about: $\displaystyle p^{2} = r^{2}  q^{2}$ or $\displaystyle q^{2} = r^{2}  p^{2}$ Both of which are derived from the original equation. Think of equations less as the value of one variable, but more as information for all of them. Last edited by skipjack; May 22nd, 2019 at 12:11 AM. 
May 22nd, 2019, 11:33 AM  #13  
Member Joined: Mar 2019 From: TTF area Posts: 83 Thanks: 1  Quote:
$11.4^{2}$ = 129.96 86.49=43.47 the sqaure root of 43.47 is 6.59317829275 so I'd guess you round it to p=6.6  

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