SOLUTION: Patti drove 21 miles to the west,and then drove 72 miles to the south. How far is she from her starting location?

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Question 963176: Patti drove 21 miles to the west,and then drove 72 miles to the south. How far is she from her starting location?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Since the directions are perpendicular, they form the legs of a right triangle.
The distance is the hypotenuse of the triangle.
D%5E2=21%5E2%2B72%5E2
D%5E2=441%2B5184
D%5E2=5625
D=75miles