Mathematics
In the adjoining figure:

(a) Name:
(i) parallel lines.
(ii) all pairs of intersecting lines.
(iii) concurrent lines.
(b) State whether true or false:
(i) points A, B and D are collinear.
(ii) lines AB and ED intersect at C.
Related Questions
From the adjoining figure, write

(i) all pairs of parallel lines.
(ii) all pairs of intersecting lines.
(iii) lines whose point of intersection is E.
(iv) collinear points.
In context of the adjoining figure, state whether the following statements are true (T) or false (F):

(i) Point A is in the interior of ∠AOD.
(ii) Point B is in the interior of ∠AOC.
(iii) Point C is in the exterior of ∠AOB.
(iv) Point D is in the exterior of ∠AOC.
How many angles are marked in the adjoining figure? Name them.
