Which letter in the word HAPPY has an order 2 rotational symmetry?

asked Apr 22, 2021 13.0k views

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2 votes

Answer:a

Explanation:

Blockhead answered Apr 24, 2021

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4 votes

Answer:

Explanation:

Here only letter H maps onto itself 2 times in a rotation of 360°i.e.one at angle 180° and one at angle 360°.

Pkubik answered Apr 28, 2021

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