Q: Which shape has a rotational symmetry of 3 and is not a triangle?

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Scalene triangle * * * * * A scalene triangle does not have rotational symmetry of order 3. The triskelion (the three legs) on the Isle of Man flag, or a simplified version of that shape will meet the requirements.

An equilateral triangle has rotational symmetry (order 3).

3- If an equilateral triangle has 3 equal sides, it also has 3 orders of rotational symmetry.

3

It is in the order of 3

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Triangle * * * * * The only triangle with rotational symmetry of order 3 is an equilateral triangle and that has 3 lines of symmetry, not 0. The triskelion (the three legs) on the Isle of Man flag has rotational symmetry of order 3 but no lines of symmetry.

An equilateral triangle.

A shape like an equilateral triangle would therefore have an order of rotational symmetry of 3

An equilateral triangle.

Scalene triangle * * * * * A scalene triangle does not have rotational symmetry of order 3. The triskelion (the three legs) on the Isle of Man flag, or a simplified version of that shape will meet the requirements.

It depends on the type of triangle. A scalene triangle (no equal sides) has no rotational symmetry. An isosceles triangle (2 equal sides) has rotational symmetry order 2. An equilateral triangle (3 equal sides) has rotational symmetry order 3. The order of rotational symmetry is how many time a shape will fit over itself during one complete rotation.

Yes, an equilateral triangle has rotational symmetry of order 3.

An equilateral triangle has rotational symmetry (order 3).

yes it does. It a rotational symmetry of 3

3- If an equilateral triangle has 3 equal sides, it also has 3 orders of rotational symmetry.

yes the rotation symmetry of an equilateral triangle is 3

3