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Angle Types and Angle Addition
Grade Level
ACT Prep
ACTM.156 Angle Types and Angle Addition
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In a straight-angle diagram, m∠AOB = (2x + 20)°, and ray OC bisects ∠BOD so that m∠BOC = m∠COD = (x + 10)°. What is m∠AOC?
A
135°
B
45°
C
180°
D
90°
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