Symmetry refers to self-similarity across a dividing line or axis of rotation. There are two main types of symmetry: reflective symmetry, where a shape is identical to its mirror image across a bisecting line, and rotational symmetry, where a shape looks the same when rotated partway around a center point. A shape has reflective symmetry if its two halves are exactly matching mirror images, as seen when a heart shape is cut out from folded paper with the two half-hearts forming a whole heart.

3. Symmetry means –
Patterned self
similarity
A shape or an object has symmetry
when a line drawn can split the shape
exactly into two.

4. To be a line of
symmetry, the shape must
have two halves that
match exactly.
When you trace a heart onto
a piece of folded paper,
and then cut it out, the two half
hearts make a whole heart.
The two halves are symmetrical.

5. TYPES OF SYMMETRY
Symmetry is of many types.
The two main types of
Symmetry are
Reflective Symmetry
and
Rotational Symmetry

6. REFLECTIVE SYMMETRY
A flat (2-D) shape has Reflective
Symmetry when each half of
the shape on either side of a
bisecting line is the mirror
image of the other half.

7. The result of a figure flipped over a line.

8. Thank you for watching my
presentation and I hope you
find it useful for learning
symmetry and it’s basic forms.
Presentation by,
Inconceivable Isha