Question

what are the 3 types of symmetry??? Explain them..

Answer 1

1) Reflectional Symmetry -Reflectional symmetry is a kind of symmetry in which half of the image is exactly same as the other half. We can say that in reflectional symmetry, either left portion is the reflection of right portion or the upper portion is is the reflection of lower portion. In this type of symmetry, one can draw either a horizontal or a vertical line across the image.

2) Rotational Symmetry -Rotational symmetry is a type of symmetry in which the image is rotated to a certain degree about at axis (generally center) and still look same as previous.

3) Translational Symmetry -A symmetry in which a particular pattern or design is shifted from one place to another, is known as translational symmetry. In other words, it is a type of symmetry in which a object changes its place without rotation or reflection. The exact same image is found on another place, even the orientation of the image is same.

Answer 2

there is radial symmetry and there is bilateral symmetry, for this you can understand these two by example Radial symmetry - Star fish
and Bilateral symmetry- Human being

Sorry my dear Friend, I don't know about third symmetry or even not sure that whether that symmetry even exits or not, but these two are confirmed!!!
bbi