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Prism height scaled with base fixed: change in volume

This type of question, asked 3 times: 12 Sep 2025 S3, 14 Sep 2025 S2, 26 Sep 2025 S3. All 3 questions below, oldest first.

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  1. Question 1

    12 Sep 2025 S3

    71
    A triangular prism has base area of 25 cm2\text{cm}^2. If height is increased by 20%20\%, what is the new volume (original height was 10 cm)?

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  2. Question 2

    14 Sep 2025 S2

    72
    If the height of a right prism is increased by 50%50\% and base area remains the same, what is the percentage increase in volume?

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  3. Question 3

    26 Sep 2025 S3

    63
    If a prism's height is tripled while the base area remains constant, what happens to the volume?

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