Arectangular prism has a base area of 56 square feet and a volume of 840 cubic feet . the length of the base is longer than the width. if the sum of the length and width of the base is equal to the height of the prism, what is the length of the base in feet?

 A unit cube is simply a cube measuring one inch, one centimeter, one foot, or whatever unit of measurement you are using, on all sides. ... If you look carefully, you will see that the volume of therectangular prism is a function of multiplying the length the width the height. ... First find the area of thebase. doe s that help a little