Which figure has an order 3 rotational symmetry? right triangle equilateral triangle regular hexagon right trapezoid

- Equilateral triangle has an order 3 rotational symmetry.

Explanation:-

In geometry, a figure has rotational symmetry if it moves onto itself under rotation about an angle at center of rotation.

The order of rotational symmetry is the number of times the shape moves onto itself throughout a rotation of 360°.

An equilateral triangle has all its sides equal with equal interior angle of 60°.

It moves onto itself three times throughout a rotation of 360°.

⇒Equilateral triangle has an order 3 rotational symmetry.

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