Every angle of a regular hexagon is:

In the following figure, $\mathrm{ABCDE}$ is a regular pentagon. Find $\angle \mathrm{ADB}$,

In the following figure, $\mathrm{ABCDE}$ is a regular pentagon. Find $\angle \mathrm{DPC}$.

In the given figure, two circles with their respective centres intersect each other at $\mathrm{A}$ and $\mathrm{B}$ and $\mathrm{AB}$ intersects $\mathrm{OO}\text{'}$ at $\mathrm{M}$, then $\angle \mathrm{OMA}$ is :

In the adjoining circle $\mathrm{C}(0,\mathrm{r})$ the degree measure of minor arc $\mathrm{AB}=130°$. Find the degree measure of major arc.