Geometry and TrigonometryMediumVolume after tripling one dimension
Geometry and Trigonometry practice question
A rectangular box measures 3 by 4 by 5 units. If its height of 5 units is tripled while the other dimensions stay the same, what is the volume of the new box?
Answer: 180
Original volume: 3 × 4 × 5 = 60. Tripling one dimension triples the volume: 3 × 60 = 180. (Or directly: 3 × 4 × 15 = 180.)
Common wrong answers
- If you answered 60
- 60 is the ORIGINAL volume.
- If you answered 540
- 540 triples the volume twice (60 × 9).
- If you answered 1620
- 1,620 triples all three dimensions (60 × 27); only the height is tripled.
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