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Posted by 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 - , 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
    | | | |
    (4B) + B (B-20) = 180
    \ | /
    \ | /
    \ | /
    \ | /
    \ | /
    \|/
    6B - 20 = 180
    B = 33.33333
    ^
    A is 4 times that
    C is 20 less than that

  • algebra - , 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 - , Monday, October 20, 2008 at 12:29am

    Thanks Bartholomew!

  • algebra - , Wednesday, October 15, 2014 at 3:30pm

    in a triangle the sum of the angle is 180degrees. if angle A is three times angle B and Angle C is 10 degrees more than twice Angle A. Find the measures of the three anges to the newarest degree

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