A trench is 40 1/2 ft. long, 8 ft. wide, and 15 3/4 ft. deep. How many cubic feet is the trench?

1 Answer
Jan 25, 2016

V=5,103 ft.^3

Explanation:

The formula for the volume of a rectangular prism is given by:

V=a*b*c, where a stands for the length, b for the width and c for the height of the prism.

With
a=40.5 ft
b=8 ft.
c=15.75 ft.

The volume is

V=40.5*8*15.75 => V=5,103 ft.^3

Or, so as to drill fraction multiplication, we could do in this way:

V=(81/cancel(2))cancel(8)(63/cancel(4))=81*1*63 => V=5.103 ft.^3