With reference to the given diagram, write the type of each of the following angles. [Measure the angles to find the type of angle.]

Name of the angle	Measure of the angle	Type of the angle
Angle $FAB$
Angle $ABC$
Angle $AFE$
Angle $FED$
Angle $CDE$

Measure $\angle BAC \& \angle PQR$, and find which one is bigger.

How many lines are passing through $O$ in the figure? How many more lines can pass though $O$.

Check whether the following example is for a perpendicular line or not.

The opposite edges of a ruler.

Check whether the following example is for a perpendicular line or not.

The line segment forming the letter $T$.

Check whether the following example is for a perpendicular line or not.

The line segments forming the letter $A$.

Check whether the following example is for a perpendicular line or not.

The adjacent edges of a door.

With reference to the following diagram, answer the given question if $l_1 \& l_2$ are perpendicular lines.

Is $\overline{BF}=\overline{PX}$

With reference to the following diagram, answer the given question if $l_1 \& l_2$ are perpendicular lines.

Is $D$ the mid-point of $\overline{AP} ?$