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5 October, 11:44

The lengths of two sides of a triangle are 12 inches and 4 inches. Which of the following dimensions is the third side of this triangle?

9 inches

8 inches

7 inches

6 inches

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Answers (1)
  1. 5 October, 14:23
    0
    According to the rule that any 2 shorter sides have to be longer (not equal) to the other side, the answer is 9 inches.

    4 + x > 12

    x > 8

    The answer is 9 inches, as x>8 doesn't include 8 in its domain.
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