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An equilateral triangle has rotational symmetry of order A 2 B 1 C 4 D 3?
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An equilateral triangle has rotational symmetry of order A 2 B 1 C 4 D...
An equilateral triangle has rotational symmetry of order 3.
Rotational symmetry refers to the property of an object to remain unchanged after being rotated by a certain angle. The order of rotational symmetry of an object is the number of times it must be rotated by a certain angle to return to its original position.
An equilateral triangle has rotational symmetry because it looks the same after being rotated by 60 degrees, 120 degrees, 180 degrees, 240 degrees, and 300 degrees. These rotations bring the triangle back to its original position, so the order of rotational symmetry of an equilateral triangle is 3.
The other options given, A 2, B 1, and C 4, are incorrect because they do not represent the number of rotations required to bring the triangle back to its original position.
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An equilateral triangle has rotational symmetry of order A 2 B 1 C 4 D 3?
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