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Triangle Sum Theorem

Interior angles add to 180 degrees

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Geometry Triangle Relationships
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    Given Two Congruent Triangles, Solve for the Unknown Interior Angle
    Teacher Contributed
    The two triangles are similar. What is the measure of x in degrees?
    A
    B
    C
    x°
    39
    A
    B
    C
    63
    qid: 100270
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