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Question
Define adjacent angles.
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Solution
Adjacent angles: Two angles are called adjacent angles, if:
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They have the same vertex,
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They have a common arm, and
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Uncommon arms are on either side of the common arm.
In the figure above, ∠AOC and ∠BOC have a common vertex O.
Also, they have a common arm OC and the distinct arms AOand BO, lies on the opposite sides of the line OC.
Therefore, ∠AOC and ∠BOC are adjacent angles.
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