Respuesta :

to find the area of a rectangle, you multiply the width and length together. in this they give you the area of it and the width so to find the length, you just divide 7776 by 81 to find it.

7776 ÷ 81 = 96.

so the length is 96. hope this helps, God bless!
The area of a rectangle is the 
A = L * W
we can plug in what we know
7776 = L * 81
divide both sides by 81
96 = L
The length of this field is 96 yards

Hope this helps :)