Chris walks 12 blocks north and then 16 blocks East. How far is his home from the park

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Chris walks 12 blocks north and then 16 blocks East. How far is his home from the park

We've got a right triangle. If we divide 12 and 16 by 4, we get:
12/4 = 3
16/4 = 4

Since the hypotenuse is the distance from the home to the park, we have a classic 3-4-5 right triangle.

So our hypotenuse is 5*4 = 20