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Question: 1 / 400

Which type of unit is used to measure the volume of a 3D shape?

Unit squares

Unit circles

Unit cubes

The correct answer is unit cubes because volume measures the amount of space occupied by a three-dimensional shape, which requires a three-dimensional unit. Unit cubes represent a volume of one cubic unit, effectively capturing the three-dimensional aspect of the measurement.

For example, if you think of filling a box with small cubes, the total number of cubes that can fit into the box represents its volume. Each cube is a unit cube, contributing to the overall measurement of space in three dimensions. In contrast, unit squares measure area, which is a two-dimensional concept, while unit circles and unit lengths pertain to circular and linear measurements respectively, neither of which can adequately convey volume.

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Unit lengths

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