What are the dimensions of a tract of land that measures 660 feet along the highway and contains 20 acres?

To determine the correct dimensions of a tract of land measuring 20 acres and having a length of 660 feet along the highway, first, it's important to understand how acres are converted to square feet. One acre is equivalent to 43,560 square feet. Therefore, 20 acres can be calculated as follows:

20 acres x 43,560 square feet/acre = 871,200 square feet.

Next, with one side of the land being 660 feet long, you can find the other dimension by dividing the total area (in square feet) by the length:

871,200 square feet / 660 feet = 1,320 feet.

This calculation indicates that the other dimension must be 1,320 feet to maintain the total area of 20 acres. Thus, the correct dimensions of the tract of land are 660 feet by 1,320 feet, confirming that this is indeed the right answer.

The other options do not provide the correct area upon calculation based on the known dimensions, hence clarifying their incorrectness relative to the area required.