圆是高中数学中最为常见的一种几何曲线,在生活当中也是一直被人们所喜爱,到处都有它的身影.从常见的杯子,到田径场的弯型跑道,再到拱形桥甚至是我们大家都很喜欢的电影《魔环》,等等.圆不仅在现实中有很大的用处,在数学解题中也有很大的作用.本文将从以下方面谈谈圆在数学解题中的应用. Circle is the most common geometric curve in high school mathematics, has also been loved by people in life, everywhere it has the figure from the common cup, track and field track, and then even the arch bridge The movie “Magic Ring”, which we all love, etc. The circle is not only of great use in reality, but also plays a very important role in solving mathematical problems.This paper will discuss the following aspects of the circle in the mathematical problem solving Applications.