If it is a regular 8 sided octagon then it will have 8 lines of symmetry
Different triangles may have none, one, or three lines of symmetry.
There could be many answers to this. If were thinking in terms of geometry: a triangle has between 1 and 3 lines of symmetry a square will always have 4 lines of symmetry. Irregular shapes might have a single line of symmetry. For instance, a building may have a single line of symmetry. a line between two points may only have one line of symmetry. because it is only 2 dimensions, it is impossible for it to have more than one line of symmetry.
2
Line symmetry is when a mirror line can be drawn so that each half is a reflection of the other half. The only one of {2, 4, 6, 8} with any possible line symmetry is the 8. Depending upon how it is written, it may have one or two lines of symmetry.
A regular octagon has 8 lines of symmetry. See the Related Link below that includes a diagram of an octagon with the lines of symmetry drawn. A non-symmetrical octagon may have between 0-4 lines of symmetry.
A square has 4. A pentagon may have 0, 1 or 5.
The flag of Russia has two lines of symmetry. One line of symmetry can be drawn horizontally, dividing the flag into two equal halves. The other line of symmetry can be drawn vertically, also dividing the flag into two equal halves. This makes the flag of Russia a symmetrical design.
They may have no lines of symmetry or they may have some - it all depends upon the shape of the irregular octagon. Only regular octagons have 8 lines of symmetry.
If it is a regular 8 sided octagon then it will have 8 lines of symmetry
Different triangles may have none, one, or three lines of symmetry.
There could be many answers to this. If were thinking in terms of geometry: a triangle has between 1 and 3 lines of symmetry a square will always have 4 lines of symmetry. Irregular shapes might have a single line of symmetry. For instance, a building may have a single line of symmetry. a line between two points may only have one line of symmetry. because it is only 2 dimensions, it is impossible for it to have more than one line of symmetry.
Only if its in the form of an equilateral triangle or a isosceles triangle will it have lines of symmetry.
A rhombus has two lines of symmetry. They are also called its diagonals. Suppose there is a rhombus ABCD AC and BD are its lines of symmetry.
2
This varies according to the polygon. A polygon is any 2D closed shape with three or more straight sides. Therefore, a polygon such as a square will have four lines of symmetry, but an irregular hexagon may have several or none. Even a triangle can have between zero and three lines of symmetry, depending on the type of triangle it is.
Line symmetry is when a mirror line can be drawn so that each half is a reflection of the other half. The only one of {2, 4, 6, 8} with any possible line symmetry is the 8. Depending upon how it is written, it may have one or two lines of symmetry.