Two angles of a triangle are $72°$ and $38°$. Find the third angle in degrees

In the given figure, if $l\parallel m$, then what type of triangle is $ABC$?

In given figure, $BC=AC$, $CD=CE$. If $\angle ABC=50°$, then find $\angle CED$ in degrees.

In the given figure, $\overleftrightarrow{PQ}$ is the perpendicular bisector of $\overline{AB}$. If $\angle XAB=40°$ and $\angle XBY=10°$, then find $\angle AYX$.

In the given figure, $ABCD$ is a square and $PQCD$ is a rectangle. Find $k$, if $\angle PRC=k°$.

In the given figure, $PQRS$ is a square. If $\angle PTR=110°$ and $\angle TPS=k°$ find $k$.

In the given figure, $MNOP$ is a parallelogram. Diagonal $MO \mathrm{and} PN$ intesect at $Q$.  If $\angle OPQ=40°, \angle OMN=30°$ and $\angle OQN=k°$ find $k$.

In a triangle $△ABC, AB=BC \mathrm{and} \angle A=60°$. Find $k$, if  $\angle B=k°$.