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6 November, 14:51

A triangle has side lengths measuring 20cm, 5cm, and n cm. Which describes the possible values of n?

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  1. 6 November, 17:05
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    The sum of any two sides must be greater than the third side.

    So if n is the largest side:

    n<20+5

    n<25

    And if 20 is the largest side:

    n+5>20 subtract 5 from both sides

    n>15

    Since n>15 and n<25

    15
    n = (15, 25)
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