Jawabanmu

2014-07-15T20:29:43+07:00
Sin B / garis didepan sudut B = SIn A / garis didepan sudut A
Sin B / AC = SIn A / BC
Sin 45 / 10 = Sin 60 / BC
(1/2 √2) / 10 = (1/2 √3) / BC
BC = 5√6 cm