Homework Help: Algebra2

Posted by Gail on Sunday, December 18, 2011 at 12:49pm.

in the triangle ABC, the measure of angle b=21 more than three times the measure of angle A. the measure of angle C=54 more than the measure of angle A. find the measure of each angle

Algebra2 - bobpursley, Sunday, December 18, 2011 at 1:18pm
The sum of the three angles is 180deg
b=21+a
c=54+a

add a+b+c and set = to 180

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