Question 862487
{{{drawing(300,300,-10,10,-10,10,circle(-5,0,0.3),circle(6,0,0.3),circle(-5,6,0.3),
line(-5,0,6,0),line(6,0,-5,6),line(-5,6,-5,0),locate(-5,-1,C),locate(6,-1,B),locate(-5,8,A),locate(1,4,x),locate(0,-1,11),
locate(3,1,37))}}}
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I think this is what you mean.
{{{cos(37)=11/x}}}
{{{x=11/cos(37)}}}
{{{x=11/0.7986}}}
{{{x=13.77}}}