Find the measure of the supplementary angle of an angle of $52^{\circ}$. (in $^{\circ}$)

In the given figure,which of the two lines are parallel and why?

In the following figure,ray $QS$ is perpendicular to line $PR$. If $a: b = 7: 11$,then find $c$. Also,find reflex $\angle TQR$.

In $\Delta PQR$,$\angle P = 42^{\circ}$ and $\angle Q = 75^{\circ}$,then find $\angle R$. (in $^{\circ}$)

State whether each of the following statements is true or false:
$(1)$ The maximum number of right angles in any triangle is two.
$(2)$ The supplementary angle of the complementary angle of an angle having measure $33^{\circ}$ has measure $123^{\circ}$.

$\angle A$ and $\angle B$ are supplementary angles. If $\angle A : \angle B = 3 : 7$,then $\angle B = \dots$ (in $^o$)