badatmath19
badatmath19 badatmath19
  • 06-07-2017
  • Mathematics
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find the value of x. then find the angle measures of the polygon

find the value of x then find the angle measures of the polygon class=

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Аноним Аноним
  • 06-07-2017
1/3x + x - 20 + x -10 + 40 = 360
7/3x + 10 = 360
7/3x = 350
     x = 150

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