Question 982067
<pre>
The other tutor has told you how to find 2 of the solutions but there
are 4 solutions in all. That's because the right angle can also be at 
the point (5,8) or at the point (-4,11).  The way he showed you will
give the green and the blue solutions in the drawing below, but you'll 
also need to find the black and red solutions. 

{{{drawing(8000/33,400,-10,10,-2,31,locate(5.2,8.5,"(5,8)"),
graph(8000/33,400,-10,10,-2,31),line(2,-20,2,40),locate(-9,11.5,"(-4,11)"),
green(triangle(-4,11,5,8,2,14)),
blue(triangle(-4,11,5,8,2,5)),
red(triangle(-4,11,5,8,2,-1)),
triangle(-4,11,5,8,2,29) 





)}}}

If you need any further assistance (which you probably won't), you can
ask me in the thank-you note form below, and I'll get back to you by
email.

Edwin</pre>