Volume of a rectangular solid is calculated using which formula?

Volume of a rectangular solid is calculated using which formula?

• A. Volume = length x width x depth
• B. Volume = length x width
• C. Volume = base x height x depth
• D. Volume = length + width + depth

Answer: (A)

Volume measures how much space is inside a three-dimensional object. For a rectangular solid, you need its three dimensions—length, width, and height (often called depth). Multiplying these three lengths, length × width × depth, gives the amount of space in cubic units. Using only two dimensions gives the base area, not the full volume, and mixing a base (an area) with other dimensions or adding the dimensions doesn’t yield volume. So the correct formula is length × width × depth.

Volume measures how much space is inside a three-dimensional object. For a rectangular solid, you need its three dimensions—length, width, and height (often called depth). Multiplying these three lengths, length × width × depth, gives the amount of space in cubic units. Using only two dimensions gives the base area, not the full volume, and mixing a base (an area) with other dimensions or adding the dimensions doesn’t yield volume. So the correct formula is length × width × depth.