joe walked 4 miles north, 9 miles east then 8 miles north and 7 miles east if Al decides to walk straight back to where he started how far must he walk?

Answer 1

He walked a total of 12 miles north and 16 miles east.

The Pythagorean Theorem will show the distance of the diagonal back to where he started.

12^2 + 16^2 = c^2

Solve for c.

Answer 2

20miles