Andhra Pradesh Board Solutions for Chapter: Lines and Angles, Exercise 21: Exercise

In the figure given below, the lines $l$ and $m$ are parallel and $n$ is transversal and if $\angle 1=80°$, then find the value of $\angle 2$.

In the figure given below, the lines $l$ and $m$ are parallel and $n$ is transversal and if $\angle 3=45°$, then find the value of $\angle 7$.

In the figure given below, the lines $l$ and $m$ are parallel and $n$ is transversal and if $\angle 2=90°$, then find the value $\angle 8$.(in degrees).

In the figure given below, lines $l$ and $m$ are parallel and $n$ is transversal and if $\angle 4=100°$,then find the value $\angle 8$.(in degrees).

Find the measure of $x, y, z$ in the figure, where $l \Vert BC$.

$ABCD$ is a quadrilateral in which $AB\Vert DC$ and $AD\Vert BC$. Find $\angle b, \angle c$ and $\angle d$.

In a given figure, '$l$' and '$m$' are intersected by a transversal '$n$'. Is $l\parallel m?$

Find $\angle a, \angle b, \angle c, \angle d$ and $\angle e$ in the figure. Give reasons.