Symmetries

Front

What is line symmetry?

Back

Line symmetry occurs when a figure can be divided into two identical halves that are mirror images of each other along a line.

Front

What is rotational symmetry?

Back

Rotational symmetry is when a figure can be rotated around a central point and still look the same at certain angles.

Front

What is point symmetry?

Back

Point symmetry exists when every part of a figure has a matching part at an equal distance from a central point, making it look the same when rotated 180 degrees.

Front

How can you determine if a figure has line symmetry?

Back

A figure has line symmetry if you can draw a line through it such that the two halves are mirror images.

Front

What is an example of a shape with both line and rotational symmetry?

Back

A square has both line symmetry (four lines of symmetry) and rotational symmetry (rotates 90 degrees and looks the same).

Front

Which letters of the alphabet have line symmetry?

Back

Letters like A, H, I, M, O, T, U, V, W, X, and Y have line symmetry.

Front

Which letters of the alphabet have rotational symmetry?

Back

Letters like H, I, O, S, X have rotational symmetry.

Front

What is the difference between line symmetry and rotational symmetry?

Back

Line symmetry involves reflection across a line, while rotational symmetry involves turning the figure around a point.

Front

Can a figure have both line and rotational symmetry?

Back

Yes, a figure can have both types of symmetry, such as a circle or a square.

Front

What is an example of a shape with only rotational symmetry?

Back

The letter Z has rotational symmetry but does not have line symmetry.