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Q: Which two letters have rotational symmetry of order 2 and two lines of symmetry?

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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.

parallelogram

A regular hexagon has 6 rotational symmetries (rotational symmetry of order six) and 6 reflective symmetries (six lines of symmetry).

It has rotational symmetry to the order of 2

Yes a rhombus has 2 lines of symmetry. These lines of symmetry join its opposite corners.

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no shape does! * * * * * Not true. A parallelogram has rotational symmetry of order 2, but no lines of symmetry.

A tetrad has rotational symmetry of order 4. It also has no lines of symmetry. It is also known as a swastica.

Not necessarily, except rotational symmetry of order 1.

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.

Yes. A circle has infinitely many lines of symmetry and it also has rotational symmetry of infinite order.

Parallelogram.

parallelogram

It has both because it has 5 lines of symmetry and rotational symmetry to the order of 5

A rectangle.

A square

A parallelogram has rotational symmetry of order 2 but there are no lines of symmetry.

i am not sure but i think a trapezium has 1 order of rotational symmetry

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