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Total surface area of a cuboid 2(lb + bh + hl)

This type of question, asked 3 times: 20 Jul 2023 S2, 25 Jul 2023 S4, 18 Sep 2024 S1. All 3 questions below, oldest first.

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  1. Question 1

    20 Jul 2023 S2

    72
    Find the total surface area (in cm2\text{cm}^2) of a cuboid having dimensions 5 cm, 7 cm and 11 cm.

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  2. Question 2

    25 Jul 2023 S4

    57
    A cuboid with sides 4, 6 and 8 units is covered with paper. The paper is removed and a square is made from it. What is the side (in units) of the square?

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  3. Question 3

    18 Sep 2024 S1

    55
    If three cubes of volume 512 cm3\text{cm}^3 each are joined end to end, find the surface area of the resulting cuboid.

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