# Inequality Proof

• December 29th 2009, 05:23 PM
jwpaul
Inequality Proof
• December 30th 2009, 01:02 AM
If $\angle1 \cong \angle 2$, then $\triangle ETS$ is isosceles, with $ET = TS$.
Similarly $\triangle PAT$ is isosceles, with $PT = TA$.
Then $PS = PT+TS = AT + TE = AE$.