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Math Help - Help with angles.

  1. #1
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    Question Help with angles.

    Prove the given relationships in the diagram.
    Show that a+b = 90 degrees
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  2. #2
    o_O
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    You know that all angles in a triangle add up to 180 degrees, so:
    a + b + (a + b) = 180

    Solve for a + b.
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