A square, a paralellogram, a trapezoid, a circle, a rectangle, a rhombus.
The shape you're describing is an isosceles triangle. It has three sides, with two sides being equal in length, and the third side being different. An isosceles triangle typically does not have rational symmetry, as its symmetry is limited to a single axis of reflection through the vertex opposite the base.
triangle
yes
The letter T for example
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
triangle
It depends on the shape!
yes
The letter T for example
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
Because linear symmetry defines a line such that the shape is unchanged when REFLECTED in that line.
There are many. An isosceles triangle, for example.
is a square a rational symmetry? is a square a rational symmetry?
Reflection symmetry, reflectional symmetry, line symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry is symmetry with respect to reflection
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.
None - it has rotational symmetry - not reflection symmetry.
Not always. It depends where the line of symmetry is located.