四边形的

A kite is a quadrilateral with one line of symmetry.

风筝个有一条对称线四边。

A prismatoid having polygons with the same number of sides as bases, and faces that are parallelograms or trapezoids.

四个边相等平行四边；直角等边平行四边。

In this chapter, we partially solve the problem of inner radius of univalence for some parallelogram, applying the properties of extremal sets of Schwarz derivatives.

在这一章我们利用Schwarz 导数极值集重要性质解决了几类平行四边单叶性内径。