Question
A six-feet tall person wants to know the height of a tree. The person stands 20 feet from the tree and sights to the top of the tree. The angle of the sight line is 30 degrees. How tall is the tree?
Answers
bobpursley
Are we assuming the tree and person are on flat horizontal ground? If so, then
height=6+20tan30
Draw the figure, and verify that.
height=6+20tan30
Draw the figure, and verify that.