Mathematics · Lines and Angles
O is a point on a straight line AB, and OC and OD are two rays on the same side of AB such that ray OC lies between rays OA and OD. If ∠AOC = 3y, ∠COD = 30°, and ∠BOD = 5y, then what is the value of 4y + 10°?
- 190°
- 285°✓
- 375°
- 470°
Correct answer
85°
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