crystal12345
crystal12345
22-04-2017
Mathematics
contestada
can someone help me with this question??
Respuesta :
akaleti47
akaleti47
22-04-2017
since lines are parallel, y +72 =180 so, y=108
6z-78=y (opposite angles are equal)
so, 6z-78=108
6z=186
z=31
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