The sides AB and AC of a triangle ABC are produced; and the bisectors of the external angles at B and C meet at P. Prove that if AB>AC, then PC>PB.
Here AB>AC
<ACB><ABC
Angle opposite to greater side is greater
<ECB<<DBC (linear angle)
12<ECB<12<DBC
<PCB<<PBC
∵PB<PC
PC>PB Hence proved.