Equilateral is an adjective, not a noun and so the question makes no sense. The order of rotation of an equilateral quadrilateral, such as a rhombus, is 1.
3
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reflective (aka reflection)
order of rotation of a semi circle is 1
An equilateral triangle has rotational symmetry (order 3).
3
yes the rotation symmetry of an equilateral triangle is 3
Three.
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60 degrees, 120 degrees
120
reflective (aka reflection)
That will depend on what type of triangle it is and if it is an equilateral triangle then it will have rotational symmetry to the order of 3
Rotational symmetry is based on points of rotation not lines
order of rotation of a semi circle is 1
A triangle can be rotated through any angle of your choice!An equilateral triangle has rotational symmetry of order 3, which means that a rotation of 120 degrees (or multiples) will bring it back to the same orientation. All other triangles have rotational symmetry of order 1: that is, you have to rotate them a full circle (360 deg) before they look the same.
Some facts about equilateral triangles:all 3 sides are of the same length (that's what equilateral means)all 3 angles are the same size - 60 degrees because the 180 degrees in the triangle are shared out equallythe shape has order 3 rotation symmetry (meaning there are 3 position into which you can rotate the shape to get the same view)the shape has 3 lines of symmetry