Shape 

Copyright David & Cynthia Thomas, 2009

Drawing 3-Dimensional Objects--Challenge: Hidden Points and Lines

Figure 6.13 shows a perspective view of a house.  Which lines in the figure represent parallel lines in the real world?  Describe the relationship of those lines in the figure.  Use The Geometers Sketchpad and Understanding Shape model House.gsp to add lines and perform measurements, as desired.  

Figure 6.13: Perspective View of a House