Answer
a.) The angles measure 120$^{\circ}$
b.) The angles measure 135$^{\circ}$
Work Step by Step
The sum of the interior angles of a pentagon is 540$^{\circ}$.
a.) 3$\angle$+90+90=540
3$\angle$=360
$\angle$=120$^{\circ}$
b.) 2$\angle$+90+90+90=540
2$\angle$=270
$\angle$=135$^{\circ}$
