Shape 

Copyright David & Cynthia Thomas, 2009

 

More Triangle Recipes--Directed Activity: Angle-Angle-Angle

                                                                            

Focus

Constructions based on Angle-Angle-Angle. 

Technologies

·        Straightedge-and-compass

·        The Geometers Sketchpad

References

·        Euclid of Alexandria

http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Euclid.html

Background

 

Figure 1.18: Angle-Angle-Angle

 

Tasks

1.      Do the angles in Figure 1.18 determine a specific triangle or multiple triangles?   

2.      Explain and justify your conclusion.