HELP MEH PLSSS

Consider the following word problem.
Martin starts at one corner of a square field and walks 40 feet along one side to another corner of the field. He turns 90° and walks 30 feet, and then walks straight back to where he started. What is the area of the part of the field he walked around?

Choose the best strategy to help solve the problem.



Relate-to-a-simpler-problem

Draw-a-figure

Break-into-parts

Guess-and-check