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20 June, 16:58

What is the length of a diagonal of a cube with a side length of 10 cm? 200cm, 210cm, 300cm, 320cm

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  1. 20 June, 18:12
    0
    None of these.

    They are the possible squares of the diagonal
  2. 20 June, 20:07
    0
    IF the side length is 10cm, then the length of diagonal of the base of the cube (x) is X² = (10) ² + (10) ² = 200cm so x = 10√2cm

    so the length of diagonal of the cube (y) is

    y² = (10) ² + (10√2) ² = 300 so y = 10√3cm
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