Write the name of the vertex$,$ the name of the arms and the name of the angle$.$

Name the points$:$

$1.$ in the interior of the angle PQR.

Name the points$:$

In the exterior of the angle PQR$.$

In the adjoining figure$,$ figure out the number of angles formed with in the arms $OA$ and $OE.$

Add $9° 45\text{'} 56\text{'}\text{'}$ and $73° 8\text{'} 15\text{'}\text{'}.$

In the figure given along side$,$ name the three pairs of adjacent angles$?$