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Math Help - Can Someone Explain This Answer? Find an angle given other angles

  1. #1
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    Can Someone Explain This Answer? Find an angle given other angles

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  2. #2
    Super Member Quacky's Avatar
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    Hint: Angles from the same chord, if subtended on the same arc, are equal.
    Angles within a triangle sum to 180 degrees.

    Use these two pieces of information, in order, and you should be able to get there.

    Final edit: see Circle Theorems
    The theorem you are expected to use is the one entitled 'Angles Subtended on the Same Arc'
    Last edited by Quacky; March 23rd 2011 at 01:58 PM.
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    Thanks.
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