
quadrilateral
词源
源自拉丁语 'quadri-'(四)和 'latus'(边),字面意思为'有四条边'。
noun
❶ 四边形,指由四条直线边和四个角组成的平面图形,如正方形、长方形、梯形等都属于四边形。
“A square is a special type of quadrilateral with four equal sides and four right angles.”
(正方形是一种特殊的四边形,具有四条相等的边和四个直角。)
“The children were asked to draw different quadrilaterals on their worksheets.”
(孩子们被要求在作业纸上画出不同的四边形。)
adjective
❶ 四边的,描述具有四条边的事物或形状。常用于几何学或建筑学领域。
“The quadrilateral shape of the courtyard provided ample space for gatherings.”
(这个四方形的庭院为聚会提供了充足的空间。)
“We need to measure all four sides of the quadrilateral plot of land.”
(我们需要测量这块四边形土地的所有四条边。)
常见短语
irregular quadrilateral — 不规则四边形,指四条边长度不等且四个角不相等的四边形。
“The field was an irregular quadrilateral, making it difficult to calculate its exact area.”
(这块田地是个不规则四边形,因此很难计算其确切面积。)
cyclic quadrilateral — 圆内接四边形,指所有顶点都位于同一个圆上的四边形。
“In a cyclic quadrilateral, the sum of opposite angles is always 180 degrees.”
(在圆内接四边形中,对角之和总是180度。)