Intersecting Lines

In the figure below, identify the pairs of exterior angles of the transversal.

If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio $5:4$, then the smallest of the two angles is:

The angle between two perpendicular line is:

When two lines are parallel to each other, then they:

Find the value of $x, y$ and $z$

How many of the following figures have parallel lines? 

If one of the angles of a pair of alternate angles is $127°$, then the other angle is $120°$.

If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are obtuse angles.

In the following figure $d=120°$

In the given figure,line $l$ is parallel to $m$ $\left(l\parallel m\right)$ 

Statements $a$ and $b$ are as given below:

Statement $a$: If two lines intersect, then the vertically opposite angles are equal. 

Statement $b$: If a transversal intersects, two other lines, then the sum of two interior angles on the same side of the transversal is $180°$.

Which of the following objects are perpendicular to the floor?

Choose the perpendicular line in the following.

If two lines are meeting at a point, these lines are called _____ lines.

How many lines can be drawn passing through a given point in a plane?

If two parallel lines are intersected by a transversal, then each pair of corresponding angles so formed is

If l ||m p is the transversal, then select the correct match.

In the given figure $AB\parallel CD$. Then the value of $x$ is 

In the diagram $AMN, QRM$ and $PRN$ are all straight lines. The value of $\alpha +\beta$ is: