A parallelogram has rotational symmetry. A parallelogram does not have reflectional symmetry. The easiest way to do this is to draw a point in the middle of the shape and rotate it to see if the point looks the same from all angles.
The quadrilateral would have to be a parallelogram which is not also a rectangle or a rhombus.
Line
Linear (horizontal as well as vertical), plus rotational (180 deg).
They have a bilateral symmetry that means that there is only one way you can cut them to get 2 equal shapes.
An isosceles triangle.
The quadrilateral would have to be a parallelogram which is not also a rectangle or a rhombus.
Line
Equilateral triangles have rotational symmetry.
Both Rotational and Line Symmetry
It has rotational symmetry order 2. Its is also known as a diamond and is a special type of rectangle
It has rotational symmetry of order 2.
Isosceles and scalene.
Rotational Symmetry, Traversal Symmetry, -Insert third type here-
It depends on the type of triangle. A scalene triangle (no equal sides) has no rotational symmetry. An isosceles triangle (2 equal sides) has rotational symmetry order 2. An equilateral triangle (3 equal sides) has rotational symmetry order 3. The order of rotational symmetry is how many time a shape will fit over itself during one complete rotation.
Sometimes but not always because that will depend on what type of a 4 sided quadrilateral it is.
The order of rotational symmetry of a equilateral triangle is three. However, the order of an isosceles triangle is one. So, the rotational symmetry depends on the specific type of triangle figure. However, all figures have at least one order. Rotational symmetry is associated with how a shape can be rotated and retains the same or similar appearance.
There are several different types of symmetry. Some of these include reflectional symmetry or rotational symmetry. It depends on how the plane has been tessellated.