Question

3. Which pairs of following angles are
supplementary ?
(1) 90°, 90° (2) 110°, 70°
(3) 120°, 90° (4) 45°, 135°
(5) 160°, 209 (6) 180°, 180°
(7) 100°, 80° (8) 125°, 125°
(9) 40°, 140°​

Answer 1

Answer:

1, 2, 4, 7 and 9

Step-by-step explanation:

Supplementary angles are angles which form 180 degrees.. The above, when added, for 180 degrees.

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Answer 2

1,2,4,7,9. U need to do is add those numbers if u get 180 those are pair of supplementary angles okkk