$\angle5\ and\ \ \angle1$

$\angle6\ and\ \ \angle3$

$\angle7\ and\ \ \angle2$

$\angle8\ and\ \ \angle4$

 $44\degree$  

 $46\degree$  

 $136\degree$  

 $146\degree$  

 $28\degree$  

 $62\degree$  

 $152\degree$  

 $162\degree$  

 $55\degree$  

 $35\degree$  

 $125\degree$  

 $135\degree$  

 $24\degree$  

 $66\degree$  

 $156\degree$  

 $166\degree$  

 $33\degree$  

 $57\degree$  

 $147\degree$  

 $157\degree$