Use the diagram and the given angle measure to find the other three measures.

$m\angle1=143\degree$ Line segments drawn on a pair of scissors. Two line segments intersect creating obtuse vertical angles 1 and 3 and acute vertical angles 2 and 4.

$m\angle2=$
a
$\degree$

$m\angle3=$
$\degree$

$m\angle4=$
$\degree$