I walk 10 ft North, 8 ft. East, 6 ft. North, and another 4 ft East. If I were able to travel in a straight line from my starting point to my destination, how far did I travel?

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I travelled a total of 16 ft. North, and 12 ft. East.
Using the Pythagorean Theorem, a²+b²=c², we can see that the hypotenuse of the right triangle (the distance I travelled in a straight line) should be 20 ft.
16²+12²=c²
256 +144=c²
400=c²
20=c

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