Posted by Kelly on Sunday, October 12, 2008 at 5:52pm.
x + y = 90
x + .5y = 75
----------------
.5 y = 15
y = 30 etc
In any triangle, the sum of the measures of the angles is 180degrees. In triangle ABC, angle A is four times as large as angle B. Angle C measures 20degrees less than angle B. Find the measure of each angle.
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