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7 February, 13:12

Which set of measurements could be the side lengths of a triangle?

A) 3 m, 6 m, 3 m

B) 9 m, 5 m, 3 m

C) 4 m, 7 m, 12 m

D) 4 m, 11 m, 9 m

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Answers (2)
  1. 7 February, 13:35
    0
    The answer is D

    because in any triangle the sum of the smallest two sides must be greater than the greatest side.
  2. 7 February, 13:41
    0
    I think the answer is D using the Triangle Sums thm.
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