SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!!

Plss show your work and give an explanation

Romy walks 16 yards, the length of a rectangular field. He then turns
right and walks 12 yards, the width of the field. How far does Romy walk
back to his starting point if he walks along the field’s diagonal?