Michigan Residential Builders License Practice Test

How would you express the volume of a concrete block that is 2 feet high, 3 feet wide, and 6 feet long?

1. 6 cubic feet

2. 12 cubic feet

3. 36 cubic feet

4. 48 cubic feet

The correct answer is: 36 cubic feet

To find the volume of a concrete block, you use the formula for the volume of a rectangular prism, which is length multiplied by width multiplied by height. In this case, the height is 2 feet, the width is 3 feet, and the length is 6 feet. When you calculate this, you multiply: Height (2 feet) x Width (3 feet) x Length (6 feet) = 2 x 3 x 6. Calculating that step-by-step: First, multiply the height by the width: 2 feet x 3 feet = 6 square feet. Next, take that result and multiply it by the length: 6 square feet x 6 feet = 36 cubic feet. Thus, the volume of the concrete block is correctly expressed as 36 cubic feet. This outcome aligns with the standard method for calculating the volume of a rectangular solid, confirming that the choice indicating 36 cubic feet is correct.