Question

A dog walks 6 m to his food bowl and then turns right and walks 8 meters to his doghouse. If the dog's final position is due east of his initial position, what is the displacement of the dog?

Answer 1

I took the test and got B) 10 correct

Answer 2

10 meters. Use vectors to represent distances. His path forms a right triangle. Then use the pythagorean theorem(a²+b²=c²) to solve for the displacement.
6²+8²=10²