The capital letter S in the English alphabet has :

(i) no line of symmetry

(ii) one line of symmetry

(iii) two lines of symmetry

(iv) infinite number of lines of symmetry

Draw all possible lines of symmetry in each of the following figures and state the number of lines of symmetry in each case.

(i)

(ii)

(iii)

(iv)

Draw all possible lines of symmetry in :

(i) a regular pentagon

(ii) a regular hexagon

Construct a triangle ABC such that BC = 6.5 cm and ∠B = ∠C = 70°. Draw all possible lines of symmetry.