"Arc" is a Chinese character, pronounced "hú". A segment of a circle, usually used in mathematics and geometry. In mathematics, an arc is the part of the arc corresponding to the central angle. In geometry, an arc is a part of a curve, which can be a curve of any shape, including an arc and an elliptical arc.

In daily life, the word "arc" is often used to describe the shape of objects, such as curved windows, curved bridges and so on. In addition, "arc" is also used to describe the trajectory or route of behavior, such as splitting arc and shooting arc.

The Chinese character "arc" is of great significance in mathematics and geometry, and is often used in daily life and sports. Correctly understanding and using the word "arc" can help us express our meaning better and enhance our language ability and understanding ability.