kerja sebisanya aja..minimal 2 nomor..pke cara

27.sin30=2akar3/CE
1/2=2akar3/CE
CE=2akarz3×2=4akar3
BC/sin60=2akar3/sin30
BC/0,5akar3=2akar3/0,5
BC=2akar3×0,5akar3/0,5
BC=6

BC/AC=CE/CD
6/8+6=4akar3/CD
6/14=4akar3/CD
CD=14×4akar3/6
CD=28/3 akar3 cm(A)