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    If the two interior opposite angles of an exterior angle of a triangle are 35° and 65° then the measurement of the exterior angle is:
    Question

    If the two interior opposite angles of an exterior angle of a triangle are 35° and 65° then the measurement of the exterior angle is:

    A.

    135°

    B.

    125°

    C.

    100°

    D.

    90°

    Correct option is C

    First interior angle = 35°
    Second interior angle = 65°
    Theorem - The sum of the interior opposite angle is equal to the exterior angle.
    The measurement of exterior angle = first interior angle + second interior angle
    35° + 65° = 100°

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