How do you find the volume of a regular-shaped object?

How do you find the volume of a regular-shaped object?

• A. Submerge it in water and measure displacement.
• B. Weigh it on a scale.
• C. Measure its length, width, and height and multiply (L × W × H).
• D. Use a thermometer.

Answer: (C)

For a regular-shaped object like a rectangular prism, volume is found by multiplying its length, width, and height. This works because you can imagine stacking rows, columns, and layers of unit blocks inside the shape; the total count of blocks is L × W × H, which equals the volume in cubic units. Submerging the object in water and measuring displacement works well for irregular shapes, where dimensions aren’t easy to measure, but for a regular shape the straightforward L × W × H method is exact and simplest. Weighing the object gives mass, not volume (unless you also know density and use mass ÷ density). A thermometer measures temperature, not volume.

For a regular-shaped object like a rectangular prism, volume is found by multiplying its length, width, and height. This works because you can imagine stacking rows, columns, and layers of unit blocks inside the shape; the total count of blocks is L × W × H, which equals the volume in cubic units.

Submerging the object in water and measuring displacement works well for irregular shapes, where dimensions aren’t easy to measure, but for a regular shape the straightforward L × W × H method is exact and simplest. Weighing the object gives mass, not volume (unless you also know density and use mass ÷ density). A thermometer measures temperature, not volume.