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4 October, 23:53

1. The illustration below shows two supplementary angles, ∠A and ∠B. The measure of ∠B is 110°. What is the measure of ∠A?

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  1. 5 October, 00:17
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    Supplementary angles = 180

    angle A = 180 - angle B

    angle A = 180 - 110

    Angle A = 70 degrees
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