2014 · Q81
AB and CD are two chords of a circle meeting externally at P. Then which of the following is/are correct?
- 1PA x PD = PC x PB.
- 2Triangles PAC and PDB are similar.
Select the correct answer using the code given below:
Elementary MathematicsGeometry
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
For externally meeting chords, triangles PAC and PDB are similar; the correct power relation is PA x PB = PC x PD, so statement 1 is wrong.