Each option: 1 Mark
(i) Points in figure (i) are A, B and C. The line segments are AB, BC, and AC.
(ii) Points in figure (ii) are A, B, C and D. The line segments are AB, BC, CD and DA.
(iii) Points in figure (iii) are A, B, C, D and E. The line segments are AB, BC, CD, DE and AE.
(iv) Points in figure (iv) are A, B, C, D, E and F. The line segments are AB, CD and EF.