Jawabanmu

2014-05-08T17:32:35+07:00
180 = 30 + 90 + ABC
180 = 120 + ABC
60 = ABC
2014-05-08T17:33:06+07:00
180* = 30 + 90 + ABC
180* = 120 + ABC
60" = ABC

60 derajat