How do you do rotations in math?

Answer 1

it is really easy:

1: you need a shape.

2: You just turn the shape.

if you want rotational symmetry:

1: you need a shape that if you rotate it more than once it will look the same, like an equillateral triangle.

2: you rotate it until it looks the same as it did before.

3: rotational symmetry is only true if the item can be rotated more than once and still look the same.