From the adjoining figure, write

(i) collinear points.

(ii) concurrent lines and their points of concurrence.

In the adjoining figure, write

(i) all pairs of parallel lines.

(ii) all pairs of intersecting lines.

(iii) concurrent lines.

(iv) collinear points.

Consider the adjoining figure of the line $\overleftrightarrow{MN}$. State whether the following statements are true (T) or false (F) in context of the given figure.

(i) Q, M, O, N and P are points on the line $\overleftrightarrow{MN}$.

(ii) M, O and N are points on the line segment $\overline{MN}$.

(iii) M and N are end points of the segment $\overline{MN}$.

(iv) O and N are end points of the segment $\overline{OP}$.

(v) M is a point on the ray $\overrightarrow{OP}$.

(vi) M is one of the end point of the segment $\overline{QO}$.

(vii) Ray $\overrightarrow{OP}$is same as ray $\overrightarrow{OM}$.

(viii) Ray $\overrightarrow{OM}$is not opposite to ray $\overrightarrow{OP}$.

(ix) Ray $\overrightarrow{OP}$is different from ray $\overrightarrow{QP}$.

(x) O is not an initial point of ray $\overrightarrow{OP}$.

(xi) N is the initial point of $\overrightarrow{NP} \text{ and } \overrightarrow{NM}$.

How many angles are there in the adjoining figure? Name them.