Question

Does this picture have rotational symmetry? How do you know?

• A. No, because you cannot divide it in half.
• B. Yes, because if you turn it it remains exactly the same.
• C. No, because it looks different depending on how you rotate it.
• D. Yes, because it has lines on it already.

Answer 1

Answer: (C)

No, because it looks different depending on how you rotate it.

The shape has rotational symmetry when it still looks the same after a rotation(of less than one full turn).

That's why the umbrella picture do not have rotational symmetry because it looks different depending on how you rotate it.