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14 October, 22:47

Let angle a = 40. If angle b is complement of angle a, and angle c is a supplement of angle b, what is angle b + angle c

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Answers (2)
  1. 14 October, 23:01
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    Angle B + angle C is 180 degrees
  2. 14 October, 23:04
    0
    A = 40, a+b = 90 so b=50

    c+b = 180 so c = 130

    b+c = 180
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