use similar triangles to solve. a person who is 5 feet tall is standing 140 ft from the base of a tree and the tree cast a 154 foot shadow. the person's Shadow is 14 ft in length what is the height of the tree
For this case we have the following relationship using similarity of triangles:  (x / 154) = (5/14)  Clearing the value of x we have:  x = (5/14) * (154)  Rewriting we have:  x = 55 feet  Answer:  the height of the tree is:  x = 55 feet