exulanjin19
exulanjin19 exulanjin19
  • 23-09-2018
  • Mathematics
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please help me to answer this question

please help me to answer this question class=

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TPS00
TPS00 TPS00
  • 23-09-2018
(180-x) + 18 + 30 + x/2 = 180

=> 180 + 48 - x + x/2 = 180

=> -x/2 + 48 = 0

=> x/2 = 48

=> x = 48×2 = 96°
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