AB and CD are two chords of a circle mee...

AB and CD are two chords of a circle meeting externally at P. Then, which of the following is/are correct?
I.PAxPD = PCxPB. traingle PAC and traingle PDB are similar.
Select the correct answer using the codes given below.

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

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