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23 October, 17:53

Triangle abc has 2 interior angles with measures of 102 and 43 which of the following could be the measure of an exterior angle of triangle abc

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  1. 23 October, 19:06
    0
    The answer is A-78

    The third interior angle = 180 - 102 - 43 = 35 degrees

    The measure of exterior angle #1 = 102 + 43 = 145 degrees

    The measure of exterior angle #2 = 102 + 35 = 137 degrees

    The measure of exterior angle #3 = 43 + 35 = 78 degrees < - - this is one of the 4 choices.

    Therefore 78 degrees could be the measure of an exterior angle of triangle ABC
  2. 23 October, 19:18
    0
    What are the options?
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