Question 815290
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
AB = {{{sqrt((-5)^2+ (-4)^2)}}} = AC = {{{sqrt((-5 )^2+ 4^2) }}}
Angle C   sin &#952; = {{{5/sqrt(41)}}}
{{{drawing(300,300,   -6, 6, -6, 8, grid(1),
circle(-4, 2,0.3),
circle(1, 6,0.3),
circle(1, -2,0.3),
blue(line(-4,2,1,6)),
blue(line(-4,2,1,-2)),
green(line(1,6,1,-2)),
red(line(-4,2,1,2)),
locate(-4.6,2.6,"A"),
locate(1.3,6.6,"B"),
locate(1.3,-2.6,"C"),
locate(1.3,2.6,"P"),

graph( 300, 300, -6, 6, -6, 8))}}}