Calculate the volume of a room that is 10 feet long, 14 feet wide, and 20 feet high.

To find the volume of a rectangular room, the formula used is:

Volume = Length × Width × Height.

In this case, the dimensions of the room are given as 10 feet long, 14 feet wide, and 20 feet high. Plugging in these values:

Volume = 10 ft × 14 ft × 20 ft.

Calculating this step-by-step:

1. First, multiply the length and width: 10 ft × 14 ft = 140 square feet.

2. Next, multiply that result by the height: 140 sq ft × 20 ft = 2,800 cubic feet.

Thus, the correct calculation shows that the volume of the room is 2,800 cubic feet, confirming the accuracy of the chosen answer. The formula clearly illustrates how a three-dimensional space is quantified, which is fundamental in various applications such as construction, interior design, and space management.