Polygons and Tessellations  

出　　处：《中学生数学》2024年第4期F0003-F0003,共1页

摘　　要：When am I ever going to use this?GEOGRAPHY The size and shape of each state in the United States is different.Analyze the shapes of the states in both groups at the right.1.Find the difference between the shapes of the states in Group 1and the shapes of the states in Group 2.2.Why do most states have boundaries that are not straight line segments?The states listed in Group 1 above are examples of polygons.A polygon is a simple,closed figure formed by three or more straight lines.A simple figure does not have lines that cross each other.You have drawn a closed figure when your pencil ends up where it started.

关 键 词：POLYGON STRAIGHT LISTED 

分 类 号：TG1[金属学及工艺—金属学]