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Question

Find the order of rotational symmetry of equilateral triangle.

A
2
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B
3
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C
4
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D
5
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Solution

The correct option is B 3
If a equilateral triangle is rotated by 120 (one fifth of 360), then it exactly fits its own outline.
Therefore a equilateral triangle has rotational symmetry of order 3.

809251_455434_ans_86b39181d1264e8687429d6379222e19.PNG

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