$\angle1\ +\ \angle2\ =\ ?$  

Lines l and m are what kind of lines?

 $\angle5\ is\ 20\degree\ what\ is\ the\ measure\ of\ \angle3?$  

 $\angle8\ and\ \angle5\ are.......$  

 $what\ is\ the\ measure\ of\ \angle5?$  

 $What\ is\ the\ measure\ of\ \angle4?$  

 $\angle2\ is\ =154\degree$  

 $\angle3\ is\ =\angle7$  

 $\angle1\ and\ \angle4\ are\ corresponding\ angles$  

 $\angle2,\ \angle3,\angle4,\angle5\ are\ exterior\ angles.$  

 $\angle4+\angle8\ =180\degree$