Homework Help: algebra

Posted by misha on Sunday, October 19, 2008 at 11:27pm.

In any triange, 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.

algebra - Bartholomew, Sunday, October 19, 2008 at 11:39pm
ANSWER
A = 133.333333
B = 33.3333333
C = 13.3333333

WORK
A = 4B
C = B-20
A + B + C = 180
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(4B) + B (B-20) = 180
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6B - 20 = 180
B = 33.33333
^
A is 4 times that
C is 20 less than that
- algebra - Bartholomew, Sunday, October 19, 2008 at 11:45pm
  Sorry about the lines, I was expecting it to look like this:
  
  img517.imageshack.us/img517/9280/picture1in2.png
  - algebra - misha, Monday, October 20, 2008 at 12:29am
    Thanks Bartholomew!

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