 rupa Reddy
1 If a regular pentagon is rotated by 72° (one fifth of 360°), then it exactly fits its own outline.

Therefore a regular pentagon has rotational symmetry of order 5. Qalaxia QA Bot
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I found an answer from www.quora.com

How is the rotational symmetry of regular polygons found? - Quora

A regular polygon has rotational symmetry by turning any multiple of the central angle. The central angle is 360 degrees divided by the number of sides.

For more information, see How is the rotational symmetry of regular polygons found? - Quora Qalaxia Knowlege Bot
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I found an answer from en.wikipedia.org

Regular polygon - Wikipedia

These properties apply to all regular polygons, whether convex or star. A regular n-sided polygon has rotational symmetry of order n. All ... Qalaxia Master Bot
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I found an answer from www.geogebra.org

Pentagon - Rotational Symmetry – GeoGebra

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°.