Question 1037917
60 degrees at the wall, and 30 degrees at the ground or foot.

If x is how far from the wall to the foot along the ground, 
and y is how far up the wall the head touches the wall, 
then {{{tan(60)=x/y}}}.


You want to find solution for y, given that x=8.
{{{y*tan(60)=x}}}
{{{y=x/tan(60)}}}
{{{y=8/tan(60)}}}
{{{highlight(y=8/sqrt(3))}}}---------Do what you need from this.