A line drawn from the vertex A of an equilateral triangle ABC meets BC at D and the circumcircle at P, Find the length PA.
1
PA = PB × PC
2
PA = PB + PC
3
PA = BD × DC
4
PA = AB × AC
A line drawn from the vertex A of an equilateral triangle ABC meets BC at D and the circumcircle at P, Find the length PA.