Question

SUPPLEMENTARY ANGLES < 1 and < 2 are supplementary angles. Given the measure of < 1, find m< 2.

12. m < 1 = 60°
13. m < 1 = 155°
14. m < 1 = 130°
15. m < 1 = 27°​

Answer 1

Answers are

12. 180 - 60 = 30 ∠2
13. 180 - 155 = 25 ∠2
14. 180 - 130 = 50 ∠2
15. 180 - 27 = 153 ∠2

Reason

Supplementary angles are two angles whose sum is 180°. If you know one angle, subtract that from 180 for your unknown angle