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5 April, 17:39

If the measure of a tangent chord angle is 68 degrees then what is the measure of the intercepted arc inside the angle

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  1. 5 April, 17:46
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    136°

    Explanation:

    Theorem: The measure of the angle formed by a tangent and a chord is equal to one-half the measure of the intercepted arc.

    In the diagram below, PR is the chord, PRS is the tangent, and PQR is the intercepted arc.

    Per the theorem,

    mPRS = ½mPQR

    mPQR = 2mPRS = 2 * 68° = 136°

    The measure of the intersected arc is 136°.
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