brycejohnson brycejohnson

17-03-2015
Mathematics

Answered

The angles of a quadrilateral measure x degrees, (x+30) degrees, (x+40) degrees and 170 degrees. What is the measure of the smallest angle?

Answer :

konrad509 konrad509

17-03-2015

[tex]x+x+30+x+40+170=360\\ 3x=120\\ x=40[/tex]

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Panoyin Panoyin

17-03-2015

x + (x + 30) + (x + 40) + 170 = 360
x + x + x + 30 + 40 + 170 = 360
3x + 240 = 360
       -240   -240
      3x = 120
   3    3
      x = 40

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