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29 July, 07:36

What is the length of the diagonal of a 10cm by 15com rectangle

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  1. 29 July, 07:45
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    a2 + b2 = c2

    102 + 152 = c2

    100 + 225 = c2

    √325 = c

    5√13 = c

    The diagonal measures 5 √13 cm.
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