Question

Teyonah walks 191 miles due south, then 40 miles due west and finally 287 miles due north. How far

is Teyonah from her starting point?

Answer 1

So the 191 miles south cancels with 191 of the 287 miles north. So Teyonah travels 96 miles north. Then she traces 40 miles west. So Pythagorean theorem says c^2 = a^2 + b^2 so c = square root of (40^2 + 96^2) which equals 104. So she has travelled 104 miles away from her starting point.