Answer:
Note that the measurement of the supplementary angles when combined will equal 180°. To find the other angle, simply subtract the angle measurement given from 180:
4. 80°
180 - 80 = 100°
100° is the supplementary angle.
5. 65°
180 - 65 = 15°
15° is the supplementary angle.
6. 34°
180 - 34 = 146°
146° is the supplementary angle.
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