Question 1033129

John (whose line of sight is 6 feet above horizontal) is trying to estimate the height of a tall oak tree. HE first measures th angle of elevation from where he is standing as 35 degrees. He walks 30 feet closer to the tree and finds that the angle of elevation has increased by 12 degrees. Find the height of the tree. (we are learning soh cah toa) 
<pre>Height of tree: {{{highlight_green(matrix(1,8, 60.52867, feet, "+", 6, feet, "=", 66.53, feet))}}}