Question 813659
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
<img src=" http://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Trigonometry_triangle.svg/200px-Trigonometry_triangle.svg.png ">
sin &#952; = {{{ opp/hyp}}} ****
cos &#952;  = {{{ adj/hyp}}}
tan &#952; = {{{  opp/adj}}}
A plane takes off making a 18 degree angle with the ground. 
After the plane travels two miles at this angle, how high is the plane?
hyp = 2 mi , a = how high the plane is
 sin(18°) = a/2
2sin(18°) = a