In the adjoining figure, $ABCD$ is a parallelogram in which $\angle BAO=35°,\angle DAO=40°$ and $\angle COD=105°$. If $\angle CBD=k°$, find the value of $k$.

In a $\parallel \mathrm{gm}$ $ABCD\mathit{,}$ if $\angle A=(2\mathrm{x}+25{)}^{°}$ and $\angle B=(3\mathrm{x}-5)°,$ find the value of $x$(in degrees)  and the measure of each angle (in degree) of the parallelogram.

In the figure given below, $ABCD$ is a rhombus. Find the value of $x°$ and $y°$.

In the figure given below, $ABCD$ is a rhombus. Find the value of $x°$ and $y°$.

In the figure given below, $ABCD$ is a rhombus. Find the value of $x$ and $y$.