Jammu and Kashmir Board Solutions for Chapter: Lines and Angles, Exercise 15: Exercise 5.2

State the property that is used in each of the following statements?
If $\mathrm{a}\mathrm{}\left|\right|\mathrm{}\mathrm{b}$, then $\mathrm{\angle }1=\mathrm{\angle }5$.

State the property that is used in each of the following statements?
If $\mathrm{\angle }4=\mathrm{\angle }6$, then $\mathrm{a}\mathrm{}\left|\right|\mathrm{}\mathrm{b}$.

 

State the property that is used in the following statement.

If $\mathrm{\angle }4+\mathrm{\angle }5=180°$, then $a\left|\right|b$.

In the adjoining figure, identify the pairs of alternate interior angles.

In the given figure below, decide whether $l$ is parallel to $m$. Write "Yes" or  "No".

In the given figure below, decide whether $l$ is parallel to $m$. Write "Yes" or "No".

In the figure given below, decide whether $l$ parallel to $m$. Write Yes or No.

In the given figure below, decide whether $l$ is parallel to $m$. Write "Yes" or "No".