M L Aggarwal Solutions for Chapter: Lines and Angles, Exercise 2: Exercise 6.2

In the figure given below, $QP\parallel SR$ and $FE\parallel SQ$. If $\angle PQS=60°$, then find the measure of $\angle RFE$.

In the figure given below, $AB\parallel CD, AB\parallel EF$ and $BC\parallel ED$. Find the values of $x, y$ and $z$.

In the figure given below, lines $PQ$ and $RS$ are parallel. For what value of $x$ will the lines $AB$ and $CD$ be parallel?

In the figure given below, $AB\parallel CD$ and $EF\parallel DQ$. Determine $\angle AED, \angle DEF$ and $\angle PDQ$.

In the figure given below, $AB\parallel CD$. Find the value of $x$.

Two lines are respectively perpendicular to two parallel lines. Show that they are parallel to each other.

In the figure given below, bisectors $AP$ and $BQ$ of the alternate interior angles are parallel. Show that lines $m$ and $n$ are parallel.

In the figure given below, $AB\parallel DE$. Show that $\angle x+\angle y-\angle z=180°$.