Flashcard (Part 1)-Symmetry and Tessellations

Front

What is rotational symmetry?

Back

A figure has rotational symmetry if it can be rotated around a central point and still look the same at certain angles of rotation.

Front

What is line symmetry?

Back

A figure has line symmetry if it can be divided into two identical halves that are mirror images of each other along a line.

Front

What is a tessellation?

Back

A tessellation is a pattern made of one or more shapes that fit together without any gaps or overlaps.

Front

What is the angle of rotation for a regular octagon?

Back

The angle of rotation for a regular octagon is 45 degrees.

Front

What transformation is used to create a tessellation?

Back

Tessellations can be created using transformations such as translation, rotation, and reflection.

Front

Which letters have line symmetry?

Back

Letters like H, A, and X have line symmetry, while Z does not.

Front

What is the difference between translation and reflection?

Back

Translation slides a shape to a new position without changing its orientation, while reflection flips a shape over a line to create a mirror image.

Front

How can you determine if a shape has rotational symmetry?

Back

To determine if a shape has rotational symmetry, rotate it around a central point and see if it matches its original position at certain angles.

Front

What is the significance of the angle of rotation in symmetry?

Back

The angle of rotation indicates how far a shape can be turned around a point before it looks the same.

Front

Can a shape have both line and rotational symmetry?

Back

Yes, a shape can have both line and rotational symmetry, such as a square.