Question

Isaiah walks 3 miles due north, turns and then 5 miles due east. How far is he from his starting point?

Answer 1

The two segments of his walk can be considered the two legs
of a right triangle.

His distance from his starting point is the hypotenuse of the triangle,
so to find its length, we can call on Old Man Pythagoras to help us.

Distance² = (3)² + (5)²

Distance = √(9 + 25) = √34

= 5.831 miles (rounded) .