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

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