Question 1057408
The total area of the field is 2x X 2x, or 4x². The area that can be irrigated is limited to a circle of area &#960;x². So the percent of the field that can be irrigated is &#960;x²/4x², or &#960;/4.  This works out to about 79%. &#9786;&#9786;&#9786;&#9786;