Posted by tori on .
a tree cast a shadow 25 feet long. the angle of elevation from the far end of the shadow to the top of the tree is 64 degrees,find the heighth of the tree

geometry 
drwls,
(height)/25 = tan64 = 2.05
height = 51.3 (ft.)
I assume that you are familiar with trigonometric functions such as tangent, although you have indicated geometry as the subject.