Answer:
50°, 105°
Explanation:
a + 130 = 180 ( sum of angles on a straight line)
a = 180 - 130 = 50°
a + b + 45 = 180 ( sum of angles in a Δ)
30 + b + 45 = 180
75 + b = 180
b = 180 - 75 = 105°
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