According to the given data we have the following:
area of a rectangle=180 square yards
lenght of the rectangle=18 yards
In order to calculate the width in yards of rectangle we would use the following formula:
area of a rectangle=lenght*width
So:
180 square yards=18 yards*width
width=180 square yards/18 yards
width=10 yards
Therefore, the width in yards of rectangle is 10 yards.