A shape is said to be symmetric if it is exactly like another if flipped, slid or turned.
The line of symmetry divides the shape into symmetry. In two-dimensional shapes there is a line of symmetry, in three-dimensional figures a plane of symmetry. The line and plane of symmetry can be in any direction. A shape can have more than one line or plane of symmetry.
The simplest type of symmetry is reflection symmetry which is also known as reflectional symmetry, line symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry. The figure which does not change upon undergoing a reflection has reflectional symmetry.
Below are some shapes that possess reflection symmetry. The dotted line is the line of symmetry.
SchoolTutoring Academy is the premier educational services company for K-12 and college students. We offer tutoring programs for students in K-12, AP classes, and college. To learn more about how we help parents and students in London visit: Tutoring in London.