SOLUTION: A person drives due east for 20 miles and then due north for 30 miles. How far is she from where she started?

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Question 363185: A person drives due east for 20 miles and then due north for 30 miles. How far is she from where she started?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The two displacements are legs of a right triangle.
The hypotenuse is the distance from the starting point.
Use the Pythagorean theorem,
20%5E2%2B30%5E2=D%5E2
D%5E2=400%2B900
D%5E2=1300
highlight%28D=36.1%29 miles