6
QuizMultiple Choice

Volume of Prisms

Question 6 • Math 7 B (M12 25/26 S2)

A rectangular prism has a base that is 5 cm by 7 cm and a height of 12 cm. If all dimensions are doubled, what happens to the volume?

Answer
A
When the dimensions are doubled, the volume is twice the original volume.
B
When the dimensions are doubled, the volume is three times the original volume.
C
When the dimensions are doubled, the volume is four times the original volume.
D
When the dimensions are doubled, the volume is eight times the original volume.

Explanation

The original volume is 5 × 7 × 12 = 420 cm³. Doubling each dimension gives a volume of 10 × 14 × 24 = 3,360 cm³. Since 3,360 ÷ 420 = 8, the volume becomes eight times the original volume, which matches choice D.

AI-written and checked against the verified answer.

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