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13 November, 01:21

Triangle ABC is an obtuse triangle with the obtuse angle at the vertex B angle A must be?

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Answers (2)
  1. 13 November, 03:29
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    If B is obtuse, B > 90 degrees, then the remaining two angles add up to less than 90 degrees, so must be acute. In fact, at least one of A and C is less than 45 degrees, but we can't tell which.

    Answer: A must be acute
  2. 13 November, 04:45
    0
    Acute. No triangle can have more than 1 obtuse angle.
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