SOLUTION: In a triangle ABC, angle B is 3 times angle A and angle C is 7 degrees less than 6 times angle A. Find the size of the angles.

Question 489033: In a triangle ABC, angle B is 3 times angle A and angle C is 7 degrees less than 6 times angle A. Find the size of the angles.

Answer by cleomenius(959) (Show Source): You can put this solution on YOUR website!
Angle A = x
Angle B = 3x
Angle C = 6x - 7
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x + 3x + 6x - 7 = 180
10x - 7 = 180
x = 18.7
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18.7 + 3(18.7) + 6(18.7) - 7
18.7 + 56.1 + 112.2 - 7 = 180
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Angle A = 18.7 degrees
Angle B = 56.1 degrees
Angle C = 105.2 degrees
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Cleomenius

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