In the figure, BC is a chord and PA is a tangent to the circle. PB = 4 cm, PA = 6 cm the length of the chord BC is :
A6
B8
C5
D10
In the figure, BC is a chord and PA is a tangent to the circle. PB = 4 cm, PA = 6 cm the length of the chord BC is :
A6
B8
C5
D10