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Equal cubes joined end to end: surface area of the resulting cuboid

The same question, asked 2 times: CDS 1 2019*, CDS 2 2021. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    CDS 1 2019

    70
    Six cubes, each with 12 cm edge are joined end to end. What is the surface area of resulting cuboid ?

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  2. Question 2

    CDS 2 2021

    70
    3 cubes each of volume 343 cm3^3 are joined end to end. What is the total surface area of the resulting cuboid ?

    Tap an option to check your answer.