Question 822403
<pre>
{{{drawing(300,3600/17,-3,5.5,-1,5,

green(line(0,0,0,3.636155821)),locate(-1.45,1.9,z),locate(-1.2,0,y),
locate(1.9,0,x),locate(2.05,2.35,4sqrt(2)),locate(-1.8,.5,"60°"),
triangle(-2.099335542,0,4.333401763,0,0,3.636155821),locate(3,.5,"40°"),
locate(.1,1.8,h)


 )}}}

{{{x/(4sqrt(2))}}} = cos(40°)
      x = 4&#8730;<span style="text-decoration: overline">2</span>·cos(40°)
      x = 4.333401763

{{{h/(4sqrt(2))}}} = sin(40°)
      h = 4&#8730;<span style="text-decoration: overline">2</span>·sin(40°)
      h = 3.636155821

{{{h/z}}} = sin(60°)
z·sin(60°) = h
      z = {{{h/sin("60°")}}}
      z = {{{3.636155821/sin("60°")}}}
      z = 4.198671085 

{{{h/y}}} = tan(60°)
y·tan(60°) = h
      y = {{{h/tan("60°")}}}
      y = {{{3.636155821/tan("60°")}}}
      y = 2.099335542  

Edwin</pre>