Two chords AB and CD of a circle intersect each other at P internally. If AP = 3.5 cm. PC = 5 cm, and DP = 7 cm, then what is the measure of PB?

Two chords AB and CD of a circle intersect each other at P internally.

1.	Two chords AB and CD of a circle intersect each other at P internally. If AP = 3.5 cm. PC = 5 cm, and DP = 7 cm, then what is the measure of PB?
A.	8 cm
B.	12 cm
C.	10 cm
D.	10.5 cm
Answer» D. 10.5 cm