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Classe GeoGebra

Pentagon - Rotational Symmetry

Auteur :Duane Runyan

Thème :Symétrie

ROTATIONAL SYMMETRY - PENTAGON

Rotate the pentagon by moving the RED X around the circle. Note each time the rotating polygon rotates onto the original shaded pentagon.

Number of Rotational Symmetries

How many times does a REGULAR PENTAGON rotate onto itself until it is back to the beginning? Include the rotation 360°.

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A
4
B
5
C
6
D
7

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List Rotational Symmetries

Choose the list that includes all rotational symmetries for a REGULAR PENTAGON:

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A
90°, 180°, 270°, 360°
B
36°, 72°, 105°, 141°, 180°
C
72°, 144°, 216°, 288°, 360°
D
None of the above.

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