There are many. An isosceles triangle, for example.
The letter T for example
An equilateral triangle has six symmetries, and an isosceles triangle has two. An isosceles triangle has a single axis of symmetry, the perpendicular bisector of the non-congruent side. This is a reflection symmetry. An equilateral triangle has rotational symmetry as well as reflection symmetry. It is invariant under rotations by 120 degrees.
A parallelogram normally has no lines of symmetry unless it is in the shape of a rectangle which will then give it 2 lines of symmetry
A square, a paralellogram, a trapezoid, a circle, a rectangle, a rhombus.
Reflection symmetry, reflectional symmetry, line symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry is symmetry with respect to reflection
It depends on the shape!
The letter T for example
An equilateral triangle has six symmetries, and an isosceles triangle has two. An isosceles triangle has a single axis of symmetry, the perpendicular bisector of the non-congruent side. This is a reflection symmetry. An equilateral triangle has rotational symmetry as well as reflection symmetry. It is invariant under rotations by 120 degrees.
Because linear symmetry defines a line such that the shape is unchanged when REFLECTED in that line.
A parallelogram normally has no lines of symmetry unless it is in the shape of a rectangle which will then give it 2 lines of symmetry
A square, a paralellogram, a trapezoid, a circle, a rectangle, a rhombus.
No. You can reflect any shape about a line but if the resulting image is not the same as the original, that line is not a line of symmetry.
Reflection symmetry, reflectional symmetry, line symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry is symmetry with respect to reflection
Not always. It depends where the line of symmetry is located.
None - it has rotational symmetry - not reflection symmetry.
A rectangle is one of them
When an object is reflected across an axis or line of symmetry, it exhibits reflection symmetry if it maintains its overall shape and structure in such a way that one half is a mirror image of the other. This means that corresponding points on either side of the line of symmetry are equidistant from that line. In essence, the object appears unchanged when viewed in reflection along that axis.