The most obvious one is the square. But it seems to me that
it's true for any regular polygon with an even number of sides.
square
Pentagon
A square
No, line symmetry and diagonal symmetry are not the same. Line symmetry, also known as reflection symmetry, occurs when a figure can be divided into two equal halves that are mirror images of each other across a line. Diagonal symmetry, on the other hand, occurs when a figure can be divided into two equal halves that are mirror images of each other across a diagonal line. In essence, while both involve symmetry across a line, the orientation and positioning of that line differ between the two types of symmetry.
Yes. A circle has infinitely many lines of symmetry and it also has rotational symmetry of infinite order.
No, take a semicircle, it is a plane figure and is open. Or a parabola is also open and a plane figure.
almost all even number of sided polygons, regular has to be
right angled triangle
No. it can also be a rectangle
An image has Reflectional Symmetry if there is at least one line which splits the image in half so that one side is the mirror image of the other. Reflectional symmetry is also called line symmetry or mirror symmetry because there is a line in the figure where a mirror could be placed, and the figure would look the same.
Vultures have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side. Which also means their eyes could see anything.
A figure that has matching parts when divided by a line is said to have a line of symmetry. These figures are also called symmetrical and their center of gravity lies along the line of symmetry.