An equilateral triangle has a rotational symmetry of 120 degrees.
This means that if you rotate the triangle by 120 degrees around its center, it will look exactly the same as it did before the rotation. In fact, it has three such positions of symmetry: at 0 degrees (the triangle in its original position), at 120 degrees, and at 240 degrees. Thus, you can turn the triangle three times (360 degrees divided by 120 degrees) to complete one full rotation, confirming its order of rotational symmetry is 3. This property makes equilateral triangles unique and aesthetically pleasing in various applications, from art to architecture.