Question: what is the difference between square miles and miles square?
Answer: It should not be confused with miles square, which refers to a square region with each side having the specified length. ... For instance, 20 miles square (20 × 20 miles) has an area equal to 400 square miles; a rectangle of 10 × 40 miles likewise has an area of 400 square miles, but it is not 20 miles square.