diagonal fraction

例句：

1. 1. The diagonalfraction of a quadrilateral is theratio of the length of one side tothe length of the opposite side.
   四边形的对角线分数是一边的长度与对面边长度的比例。
2. 2. In mathematics, the diagonal fraction ofa matrix is the ratio of the determinant to the number of rows andcolumns.
   在数学中，矩阵的对角线分数是行列式与行数和列数的比值。
3. 3. The diagonal fraction of a triangle isthe ratio of the area to the baselength.
   三角形的对角线分数是面积与底边长度的比值。