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posted by Anonymous on Saturday, September 18, 2010 at 4:40pm.
In a triangle ABC,angle B is 3 times angle A and angle C is 5 degrees less than 6 times angle A. Find the size of the angles.
A + B + C = 180 A + 3A + (6A-5) = 180 10A = 185 A = 18.5 B = 3A = 55.5 C = 106
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