math help
posted by Anonymous .
on a drive through allegheny county, natalie drove due west for 9 miles, then turned left and proceeded to drive due south. after traveling 12 miles south, what was the straight line distance between where natalie started and where she ended her drive?

It's time for the Pythagorean Theorem! You need to find the hypotenuse of this right triangle.
a^2 + b^2 = c^2
9^2 + 12^2 = c^2
81 + 144 = c^2
225 = c^2
15 = c 
On a drive through Allegheny County Natalie drove due west for 9 miles, then turned left and proceeded to drive due south. After traveling 12 miles south, what was the straight line distance between where Natalie started and where she ended her drive?

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