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12 September, 13:12

In this parallelogram, the measure of angle b exceeds the measure of angle a by 30 What is the measure of angle c

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  1. 12 September, 13:40
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    Angle a + angle b = 180 degrees

    angle a + angle a + 30 = 180

    2*angle a = 150

    angle a = 75degrees

    angle b = 75+30 = 105 degrees

    now, angle b + angle c = 180

    so, angle c = 180-105 = 75 degrees
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