Question

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Answer 1

Answer:

Angle AOC = 151°

Angle BOC = 49°

Step-by-step explanation:

3a + 4 + a = 180° (Linear pair)

4a + 4 = 180°

4a = 180°- 4

4a = 176°

a = 176°/4

a = 49°

3a + 4 = 3(49)+4

= 151°