Pre-Algebra

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Measure of two angles of a tringle are 28 and 58. Classify triangle by it's angle.

  • Pre-Algebra -

    An acute triangle has all acute angles (less than 90 degrees)

    An obtuse triangle has one obtuse angle, more than 90 deg. and less than 180 deg

    28 + 58 = 86
    180 - 86 = 94

    therefore, this is an obtuse triangle

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