Since PR>PQ, the angles opposite to the sides will also have the same relation.
=>∠PAR>∠PAQ
From the figure, we see that △PAR and △PAQ have angles ∠APR and ∠APQ equal to a right angle.
We know that sum of angles in a triangle =180o
So, in the two triangles, △PAR and △PAQ , if ∠APR=∠APQ
∠PAR>∠PAQ
=>∠AQP>∠ARP as the sum of all angles should be =180o
Hence, the sides opposite to them also share the same relation.
=>AR>AQ