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28 August, 21:16

A square has a perimeter of 20 cm what is the length of its diagonal rounded to the nearest tenth

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  1. 29 August, 00:51
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    multiply the length of one side by the square root of 2.

    20 √2 = 28.28

    Rounded to the nearest tenth:

    28.28 →28.3

    28.3 is the final answer
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