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OpenStudy (anonymous):
In a triangle ABC, angle B is 3 times angle A and angle C is 19 degrees less than 6 times angle A. Find the size of the angles. Angle A is ? degree Angle B is ? degree Angle C is ? degree
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OpenStudy (anonymous):
a +3a +6a - 19 = 180 10a = 199 a =19.9 b = 59.7 c= 100.4
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