Question

which letter in the word happy has an order 2 rotational symmetry?
o h
o a
o p
o y

Explanation:

Step1: Recall rotational symmetry order

Order \(n\) rotational symmetry means the figure looks the same after a rotation of \(\frac{360^{\circ}}{n}\). For order \(2\), rotation is \(180^{\circ}\).

Step2: Analyze each letter

• For \(H\): Rotating \(H\) by \(180^{\circ}\) gives the same shape.
• For \(A\): Rotating \(A\) by \(180^{\circ}\) does not give the same shape.
• For \(P\): Rotating \(P\) by \(180^{\circ}\) does not give the same shape.
• For \(Y\): Rotating \(Y\) by \(180^{\circ}\) does not give the same shape.

Answer:

H