In the figure, line $p\parallel$ line $q$ and line $l$ and line $m$ are transversals. Measures of some angles are shown. Hence find the measures of $\angle a, \angle b, \angle c, \angle d.$

 

In the figure, line $l\parallel$ line $m$ and line $n\parallel$ line $p$. Find $\angle a, \angle b, \angle c$  from the given measure of an angle.

In figure, sides of $\angle PQR$ and $\angle XYZ$ are parallel to each other. Prove that, $\angle PQR\cong \angle XYZ$.

In the figure, line $AB\parallel$ line $CD$ and line $PQ$ is transversal. Measure of one of the angles is given. Find the measures of $\angle ART$. (Write the answer without degrees $\left(°\right)$  symbol)

In the figure, line $AB\parallel$ line $CD$ and line $PQ$ is transversal. Measure of one of the angles is given. Hence find the measures of $\angle CTQ$ in degrees $\left(°\right)$.

In the figure, line $AB\parallel$ line $CD$ and line $PQ$ is transversal. Measure of one of the angles is given. Hence find the measures of $\angle DTQ$ in degrees $\left(°\right)$. (Write the numerical value)

In the figure, line $AB\parallel$ line $CD$ and line $PQ$ is transversal. Measure of one of the angles is given. Hence find the measures of $\angle PRB$ in degrees $\left(°\right)$.

In the figure, $y=108°$ and $x=71°$ . Are the lines $m$ and $n$ parallel? Justify?

In figure, if $\angle a\cong \angle b$, then prove that line $l\parallel$ line $m$.