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6 October, 17:56

You're given two side lengths of 6 centimeters and 9 centimeters. Which measurement can you use for the length of the third side to construct a

valid triangle?

3 centimeters

10 centimeters

12 centimeters

14 centimeters

18 centimeters

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Answers (1)
  1. 6 October, 18:28
    0
    Let's give names to the all sides a=6, b=9 and c=?

    Third sides of an triangle is determined by the following double inequality, in this case b>a = > b-a < c 9-6 < c

    3 a>c = > a-c < b 6-4 < 9

    2 < 9 < 10, inequality is true.
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