Basics of Lines and Angles

If the incentre of an equilateral triangle lies inside the triangle and its radius is $3 \mathrm{cm}$, then the side of the equilateral triangle is:

If then are $36$ spokes in a bicycle wheel then the angle between a pair of a adjacent spokes is 

Angle between two parallel lines is

In the adjoining figure, if $QP\parallel RT$, then $x$ is equal to

Identify the obtuse angles from the following figures.

Is the following triangle acute?

The angle between two perpendicular line is:

It is given that $\angle XYZ=54°$ and $XY$ is produced to a point $P$. Draw a figure from the given information. If ray $YQ$ bisects $\angle ZYP$, find $\angle XYQ$ and reflex $\angle QYP$.

It is given that $\angle XYZ=64°$ and $XY$ is produced to a point $P$. Draw a figure from the given information. If ray $YQ$ bisects $\angle ZYP$, find $\angle XYQ$ and reflex $\angle QYP$.

When _____ rays intersect at a point, they form an angle.

Name the angle marked in the diagram.

Name the angle marked in the diagram.

How many right angles make a complete angle?

Would these lines meet, if extended?

Choose the most appropriate option with respect to the above image.

For a person standing on an open ground, which of the following appears like a “point"?

The number of dimensions associated with a point is

In the following picture we see the map of Paris. The pointer  represents the world famous Eiffel Tower. This pointer can be considered as a point because

The intersection of the length and breadth of a sheet of paper will be a

Which of the following can be considered as an example of a “point"?