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Need help with all 4

Need help with all 4-example-1
User Sehugg
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1) 90 degrees, if it rotated 3 more times to that degree in the same direction it would end up where it started

2) 180 degrees

3) 270 degrees (three 90 degrees)

6 has rotational symmetry and the other ones don't

hope this helped, if you have more questions feel free to ask



User Spats
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