Jawabanmu

2014-04-13T06:59:43+07:00
6.sudut yg dibentuk persegi = 90
jadi 18m = 90 -> m = 90/18 -> m = 5
9n = 90 -> n = 90/9 -> n = 10
m-n = 5-10 = -5
maaf cuma itu saja
18m sama 9n kan sama2 90. kok bisa 180?
tanda > m dibaca sudut m kah
2014-04-13T07:03:07+07:00
6. 18m=9n=90 m=5....n=10 => m - n = -5