Rotational symmetry Flashcards
What is rotational symmetry?
An object has rotational symmetry when it is able to retain its same shape before a complete rotation.
What is order of rotation?
It is the number of times that the object will retain it’s shape when it rotated one complete round
In this case it is 3
How do you determine the order of rotation for this figure?
Place a dot on the top arm and see that it can rotated 3 times before it returns to its orginal position
What is the order of symmetry for this figure?
The order of symmetry is 4
What is the order of symmetry for this figure?
The order of symmetry is 0
Not every object has rotational symmetry
What is the order of symmetry for this figure?
The order of symmetry is 8
What is the order of symmetry for this figure?
The order of symmetry is 2
What is the order of symmetry for this figure?
The order of symmetry is infinite
The object can be rotated countless number of times and still retain the same shape