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In each figure below, the segments on the sides can be moved.Create the following triangles, if possible.First figure: A triangle with side lengths of 5, 7, and 8.Second figure: A triangle with side lengths of 2, 6, and 9.If there is no triangle possible with the given side lengths, click on "No triangle possible".

Question

In each figure below, the segments on the sides can be moved.Create the following triangles, if possible.First figure: A triangle with side lengths of 5, 7, and 8.Second figure: A triangle with side lengths of 2, 6, and 9.If there is no triangle possible with the given side lengths, click on "No triangle possible".

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Solution

To determine if a triangle can be formed with given side lengths, we can use the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

  1. For the first figure with side lengths of 5, 7, and 8:

    • 5 + 7 = 12, which is greater than 8
    • 5 + 8 = 13, which is greater than 7
    • 7 + 8 = 15, which is greater than 5 Therefore, a triangle can be formed with side lengths of 5, 7, and 8.
  2. For the second figure with side lengths of 2, 6, and 9:

    • 2 + 6 = 8, which is less than 9
    • 2 + 9 = 11, which is greater than 6
    • 6 + 9 = 15, which is greater than 2 Because the sum of the lengths of the two shorter sides is not greater than the length of the longest side, a triangle cannot be formed with side lengths of 2, 6, and 9. Therefore, for this figure, click on "No triangle possible".

This problem has been solved

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1/2

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