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posted by esther Thursday, December 16, 2010 at 12:15am.
In a triangle ABC,angle b is 4 times angle "A" and angle "C" IS 17 less than 5 times angle "A". Find the size of the angles.
let angle A = x then angle B = 4x and angle C = 5x-17 solve: x + 4x + 5x - 17 = 180
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