Eighth grade ) T.5 Pythagorean theorem: word problems 87U A bird was sitting 9 feet from the base of an oak tree and flew 15 feet to reach the top of the
tree. How tall is the tree?

The tree is 12 feet tall

Step-by-step explanation:

Let a represent the length of where the bird was sitting to the oak tree

let b represent the height of the tree

let c represent the length at which the bird flew

by pythagoras theorem

c²=a²+b²

b²=c²-a²

subtitute in the values