The quadrilateral which has the highest line and rotational symmetry is _______ .
(a) If a fan has a rotational symmetry of order 4, how many blades are there in the fan? (b) Name the quadrilateral which has both line and rotational symmetry of order more than 1. [2 MARKS]
Draw, wherever possible, a rough sketch of
(i) a triangle with both line and rotational symmetries of order more than 1.
(ii) a triangle with only line symmetry and no rotational symmetry of order more than 1.
(iii) a quadrilateral with a rotational symmetry of order more than 1 but not a line symmetry.
(iv) a quadrilateral with line symmetry but not a rotational symmetry of order more than 1.