1. Architectural design: In architectural design, circular buildings and structures are very common, such as circular domes and columns. By studying circles, architects can better understand and design these shapes and ensure the stability and aesthetics of buildings.
2. Engineering survey: In engineering survey, it is often necessary to calculate the circumference, area and arc length of a circle. For example, in road construction, it is necessary to calculate the circumference of a circular tunnel or bridge to determine the required materials and workload.
3. Geometry problem solving: The knowledge of circle science is very useful in geometry problem solving. For example, if the sum of the internal angles of a triangle is 180 degrees, then the center of the circumscribed circle of the triangle is the outer center of the triangle. By studying the circle, we can better solve this kind of geometric problems.
4. Physical experiments: In physical experiments, circular objects and phenomena are also common. For example, in the optical experiment, the light will form a circular spot after passing through the convex lens. By studying circles, we can better understand and explain these phenomena.
5. Artistic creation: In artistic creation, the circle is also very important. For example, in painting and sculpture, circles can be used to express the concepts of harmony, integrity and infinity. By studying circles, artists can make better use of them to create works.