If $l\parallel m$, find the values of the unknown angles in the figure given below.

 

In the following figure, $D$ and $E$ are points on sides $AB$ and $AC$ of $∆ABC$ respectively such that $DE\parallel BC$. If $\angle B=30°$ and $\angle A=40°$, find $x, y$ and $z$.

In given Fig. $△ABC$ is right angled at $\mathrm{A}. \mathrm{Q} \mathrm{and} \mathrm{R}$ are points on line $BC$ and $P$ is a point such that $QP\left|\right|AC$ and $RP\left|\right|AB.$ Find $\angle P$.

Find the sum of $\angle 1, \angle 2, \angle 3, \angle 4, \angle 5, \angle 6, \angle 7, \angle 8,$ and $\angle 9$ in the adjoining figure.

In the following figure the values of $x$ and $y$ are respectively 

In the following figure the measure of some of the angles are indicated the values of $x$ and $y$ are respectively

In the figure below two of the angles are indicated. What are the measures of $\angle ACX$ and $\angle ACB$? 

In the figure below find $\angle ABD$. Also, find $\angle ABC$, if $\angle C=3\angle ABC$  

In the figure below find $\angle ACD$