pada segitiga ABC jika sudut a = 45 derajat AB = 6 cm dan BC = 6 akar 2 cm maka sudut b adalah...... please bantu dong, penting...

dalil sinus :

a/sin A = c/sin C
6√2/sin 45 = 6/sin C
6√2/ (1/2) √2 = 6/sin C
12 = 6/sin C
sin C = 6/12 = 1/2
C = 60

maka B = 180 - 60 - 45 = 75