There are 5280 feet in a mile.
5280/33 = 160
Each post is spaced 160 feet.
Step-by-step explanation:
you know how to calculate the area of a rectangle ?
it is length × width.
now the volume of a 3D-rectangle (= a rectangular prism) is simply
length × width × height.
in our case
5 1/2 × 1 1/2 × 2 = 11/2 × 3/2 × 2 = 33/2 =
= 16 1/2 cubic units