Are line segments and angles axisymmetric?

Are line segments and angles axisymmetric?

Both are axisymmetric figures. The concept of angle 1: a figure composed of two rays with a common endpoint is called an angle. The common endpoint is called the vertex of the angle, and the two rays are called the two sides of the angle. The concept of angle 2: the figure formed by a ray rotating from one position to another around its endpoint is called an angle