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17 August, 23:57

In triangle abc, measure of angle b = 90, cos c = 11/17, and ab=26 units based on this information what is the measure of angle a, measure of angle c and length of ac

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  1. 18 August, 00:04
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    1. Find angle C.

    arc (cosc) = arccos (11/17)

    c = 49.68°

    2. Find angle a.

    Angle a = 180° - (49.68° + 90°)

    Angle a = 40.42°.

    3. Use the law of sines.

    Take it from here.
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