October 4th, 2017, 09:46 AM  #1 
Newbie Joined: Oct 2017 From: Houston Posts: 1 Thanks: 0  Missing Side Calculation 
October 5th, 2017, 06:42 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,293 Thanks: 1684 
As (1086' + A)/A = 13744/13312, A = 1086' × 13312/(13744  13312) = 301184'/9.

October 5th, 2017, 07:01 AM  #3  
Senior Member Joined: Apr 2014 From: Glasgow Posts: 2,125 Thanks: 714 Math Focus: Physics, mathematical modelling, numerical and computational solutions  Quote:
$\displaystyle \tan \theta = \frac{13312}{A}$ for the small triangle and $\displaystyle \tan \theta = \frac{13744}{(1086+A)}$ for the large triangle. Equating the two gives $\displaystyle \frac{13312}{A} = \frac{13744}{(1086+A)}$ which can then be solved for A using basic algebra. Once A is known, you can either use trigonometry or Pythagoras' theorem to get B using the small triangle dimensions.  

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