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 A figure is said to be symmetrical when a line divides it into two identical halves.
The line is called the line of symmetry.
 A figure may have more than one line of symmetry.

 A figure and its image formed by reflecting it over the mirror line are symmetrical
to each other.
 A shape can slide, flip or turn.

 A pattern is a sequence in which objects or numbers repeat or follow a rule.
1 1 1 1
 A pattern can also be made by turning a shape by , , or .
4 2 3 6
 Tessellation is a recurring pattern of symmetrical, interlocking shapes that fit
together without any gaps in between.

Learning LOGS

1. Find the number of lines of symmetry. draw the lines.

a. b. c. d.

2. draw what the shape below looks like after the given turns.

Shape a half turn a quarter turn a three-fourth turn

a.

b.

c.

Also, find the order of rotational symmetry of the above shapes.

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Symmetry and Patterns