To get the area of the badgers in yards, you would have to do 40 yds * 20 yds / 2. Your answer should be 400 yds. Then, you would change it into feet. For every one yard, it is three feet. Therefore you would multiply the 400 yds by 3 to get it into feet. Now that you have it into feet, you can multiply it by the number of 1.25 per square feet.
