In the below figure, OP || RS, $\mathrm{\angle }OPQ={110}^{\circ }\backslash angle\; OPQ=110^\backslash circ$ and $\mathrm{\angle }QRS={130}^{\circ }\backslash angle\; QRS=130^\backslash circ$, then $\mathrm{\angle }PQR\backslash angle\; PQR$ is equal to

If $ll$, m and n are three lines concurrent at ‘O’, then the value of ‘y’

If two interior angles on the same side of transversal intersecting two parallel lines are in the ratio 2 : 3, then the greater of two angles is

What is the minimum number of lines required to make a closed figure ?

Which of the two lines are not parallel ?

In the adjacent figure, $\mathrm{\angle }AOB=x^{\circ }\backslash angle\; AOB=x^\backslash circ$, $\mathrm{\angle }BOC=y^{\circ }\backslash angle\; BOC=y^\backslash circ$, $\mathrm{\angle }COD=z^{\circ }\backslash angle\; COD=z^\backslash circ$ and $\frac{y}{x}=5\backslash frac\{y\}\{x\}=5$, $\frac{z}{x}=4\backslash frac\{z\}\{x\}=4$ then the value of ‘x’ is x

In the adjacent figure, $\mathrm{\angle }AOB=x^{\circ }\backslash angle\; AOB=x^\backslash circ$, $\mathrm{\angle }BOC=y^{\circ }\backslash angle\; BOC=y^\backslash circ$, $\mathrm{\angle }COD=z^{\circ }\backslash angle\; COD=z^\backslash circ$ and $\frac{y}{x}=5\backslash frac\{y\}\{x\}=5$, $\frac{z}{x}=4\backslash frac\{z\}\{x\}=4$ then the difference of supplementary and conjugate angles of ‘x’ is

In the adjacent figure, l || m, ‘n’ is transversal.

Reason for the sum of angles A and H are ${180}^{\circ }180^\backslash circ$ is

In the adjacent figure, l || m, ‘n’ is transversal.

An example for a pair of co-interior angles are

In the adjacent figure, l || m, ‘n’ is transversal.

If $\mathrm{\angle }B={100}^{\circ }\backslash angle\; B\; =\; 100^\backslash circ$ then the value of $\mathrm{\angle }H\backslash angle\; H$ is.......