Question

A rectangular field is 30 feet wide and is enclosed by 210 feet of fencing. What is the area of the field in square feet?

Answer 1

Well, if we know that the width of the field is 30 ft, that means that two sides of the rectangle are 30 ft, or in total 60 feet. Right, b/c a rectangle has two equal vertical sides and two equal horizontal sides. So if we subtract 60 from 210 we get: 150. Now since we know that we have to have two other sides that are of equal lenght, we simply divide 150/2 which equals 75. So, we now know that we have a rectangle with a lenght of 75 and a widht of 60. The area of a rectangle is l*w or lenght
*witdh. So 75*60=Area