Symmetry · Grade 2
In Grade 2 you learn: lines of symmetry.
A shape has line symmetry if it can be folded so that the two halves match exactly. It has rotational symmetry if it looks the same after a turn of less than 360°. Symmetry appears in logos, flowers, snowflakes and road signs.
Key facts
- A line of symmetry is a mirror line: each point has a matching point the same distance away on the other side.
Worked examples
Example 1
How many lines of symmetry does a rectangle have?
Answer: 2