4
Four, if the quadrilateral is a square, but if it is a rectangle it only has two and if it is an irregular quadrilateral it most probably only has one. So a rectangle, a rhombus, and a parallelogram have two, orders of rotational symetry but a kite and a trapezium although quadrilaterals (4sides) only have one.
yes
None.
Inifity ... symmetry ... parallelogram ... infinity ...
4
Four, if the quadrilateral is a square, but if it is a rectangle it only has two and if it is an irregular quadrilateral it most probably only has one. So a rectangle, a rhombus, and a parallelogram have two, orders of rotational symetry but a kite and a trapezium although quadrilaterals (4sides) only have one.
yes
None.
None.
A parallelogram has a rotational symmetry of 2!
A general parallelogram has rotational symmetry of order two.
Inifity ... symmetry ... parallelogram ... infinity ...
None. For a 3-dimensional object, a line of symmetry implies rotational symmetry and an aircraft has no line of rotational symmetry.
3- If an equilateral triangle has 3 equal sides, it also has 3 orders of rotational symmetry.
A scalene triangle has one order of rotational symmetry.
If it's a regular 8 sided octagon then it rotational symmetry to the order of 8