Answer:
Angle 1= 45 degrees, angel 2= 135
Explanation:
you know that line b has a 45 degree angle on a 180 total, so to find angle 1 you just move the 45 as they are the same, to find angle b you substract 45 from 180 getting 135
angle 1 = 45° because vertical angles
angle 2 = 135° because supplementary angles
∠1 = ∠a, ∠a = 45°
∠2 + ∠a (45°) = 180°
180° - 45° = 135°
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