Question

∠1 and ∠2 are supplementary angles. If m∠1 = 77°, then m∠2 =

Answer 1

Answer:

m∠2 = 103°

Step-by-step explanation:

Since ∠1 and ∠2 are supplementary angles, together they equal 180. So, you would just subtract 180-77 and get 103. To check if you are correct just add ∠1 and ∠2 ( 77+103) and you'll get 180 :)