Number of lines of symmetry is 0; order of rotation is 2

Number of lines of symmetry is 1.

Order of rotation is 0, because it is an isosceles triangle

iii) Number of lines of symmetry are 2

Order of rotation is 2

iv) Number of lines of symmetry 8 and order of rotation 8

Number of line of symmetry is 1 and order of rotation 0.