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10 October, 10:20

In a right triangle, one of the exterior angles measures 155°. What is the measure of the non-adjacent, non-right angle?

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  1. 10 October, 10:26
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    Supplementary angles equal to 180

    So, adjacent angle + exterior angle = 180

    adjacent angle = 180 - 155 = 25

    Now, non-adjacent + adjacent = 90

    non-adjacent = 90 - 25 = 65

    So 65 degrees is your answer.
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