Quadrilaterals  

出　　处：《中学生数学》2023年第24期F0003-F0003,共1页

摘　　要：When am I ever going to use this?BASKETBALL The photograph shows the free throw lane used in international basketball.1.Describe the angles inside the 4-sided figure.2.Which sides of the figure appear to be parallel?3.Which sides of the figure appear to be congruent?The shape of the free-throw lane above is called a trapezoid.Squares, rectangles, and trapezoids are examples of quadrilaterals.A quadrilateral is a closed figure with four sides and four angles.Quadrilaterals are named based on their sides and angles.The diagram shows how quadrilaterals are related.Notice how it goes from the most general to the most specific.

关 键 词：sided DIAGRAM FIGURE 

分 类 号：TG1[金属学及工艺—金属学]