GED Math Practice Test

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Prepare for the GED Math Test with our comprehensive quiz. Practice with multiple choice questions and get detailed hints and explanations to boost your confidence and skills. Enhance your test readiness today!

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

Unit squares
Unit circles
Unit cubes
Unit lengths

The correct answer is: 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.