exulanjin19
exulanjin19
23-09-2018
Mathematics
contestada
please help me to answer this question
Respuesta :
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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