POLYGONS This book is about polygons and types of the polygon. It builds upon students' knowledge of basic geometry in triangles and polygons and leads students to a better understanding of polygons and quadrilaterals and their usefulness in the world around us. With this understanding, students can have a better appreciation of their environment and of their role in its organization. This book is divided into three sections: · Section 1 covers basic definitions and the common properties of all polygons. Students study the concept of a regular polygon and are shown examples of the importance of polygons in the world around us · Section 2 looks at quadrilaterals and their specific properties · Section 3 provides a more detailed look at the properties of six special quadrilaterals (the parallelogram, rectangle, rhombus, square, trapezoid, and kite), and the similarities and differences between them. The book follows a step-by-step teaching approach and explains definitions and examples clearly, just as a teacher would explain them in the classroom. Examples and exercises are designed to encourage students to think for themselves. In addition, the text uses a variety of types of proof (paragraph, flow chart, and two-column, with explanations) to give students more practice in understanding proofs and in writing their own. At each stage of the course, students' progress can be checked through regular self-check ('Check Yourself) sections and graded exercises (see the section 'Using This Book' at the end of this preface for more information) Separate activity and project sections have also been provided, to help increase students' understanding of the topic as they study The book ends with a summary of the main points in the module, as well as review tests on all of the sections to help prepare students for examinations.