Jawabanmu

2014-04-09T20:26:15+07:00
Sudut PSR = 180-67-54 = 59
sudut TRS = 54
Sudut QPS = sudut PSR = 59

6. sudut MST = SMR = 58
sudut RTS = 46+ 58 = 104
sudut MTR = 180-104-42 = 34
2014-04-09T20:48:25+07:00