Chapter 8 Introductory Geometry Section 8.6 Viewing and Drawing Solid Figures

The purpose of this section is to begin to learn how to draw three-dimensional figures. This is not always an easy skill to learn but we will use a method that is introduced in some 7 th grade classrooms. The method introduces the concept of a “building” which is cubes arranged either on top or next to each other. Some different buildings are pictured below Base Plan or top view shows what you would see looking from above Front View shows what you would see looking head on Right Side View shows what you would see from right side. The numbers show how many blocks are indicated.

Drawing Buildings In order to help a person draw cubes we use isometric dot paper to help add what is called the perspective view to the picture. Isometric dot paper differs from ordinary dot paper we use for geoboards in that the next row of dots is offset from the previous row. Drawing a cube is a matter of connecting the dots in a certain pattern. Buildings can be drawn by drawing another cube above or below to expand the building up or down. Cubes can be drawn to the right or left to expand the building sideways Top or Base View Front View Right View

Lets draw the building below on the left together.