In the given figure, $\mathrm{ABCD}$ is a rhombus, find the values of $x,y$ and $z$.

In the given figure, $ABCD$ is a trapezium. If $\angle A:\angle D=5:7, \angle B=(3x+11)°$ and $\angle C=(5x-31)°,$ then find all the angles of the trapezium.

In the given figure, $\mathrm{ABCD}$ is a rectangle. If $\angle \mathrm{CEB}:\angle \mathrm{ECB}=3:2$, if $\angle \mathrm{CEB}=k°$ then find $k$.

In the given figure, $\mathrm{ABCD}$ is a rectangle. If $\angle \mathrm{CEB}:\angle \mathrm{ECB}=3:2$, if $\angle \mathrm{DCF}=k°$ then find $k$.

In the given figure, $\mathrm{ABCD}$ is a rectangle and diagonals intersect at $\mathrm{O}.$ If $\angle \mathrm{AOB}=118°,$ and $\angle \mathrm{ABO}=x°$, then find the value of $x$.

In the given figure, $ABCD$ is a rectangle and diagonals intersect at $0.$ If $\angle AOB=118°$ and  $\angle ADO=k°$. Find the value of $k.$

In the given figure, $ABCD$ is a rectangle and diagonals intersect at $O$. If $\angle AOB=118°$ and $\angle OCB=k°$, then find the value of $k$.

In the given figure, $\mathrm{ABCD}$ is a rhombus and $\angle \mathrm{ABD}=50°.$ If $\angle \mathrm{CAB}=k°$, then find the value of $k$.

In the given figure, $\mathrm{ABCD}$ is a rhombus and $\angle \mathrm{ABD}=50°.$ If $\angle \mathrm{BCD}=k°$, then find the value of $k$.