Shape 

Copyright David & Cynthia Thomas, 2009

Linear Transformations--Directed Activity: Dilations

Focus

Dilation

Technologies

Metric ruler

Background

Figure 4.11: Dilation

Tasks

For each object in Figure 4.11

· Mark the center of the dilation (enlargement/reduction).

· Draw and measure line segments between the center of the dilation, each vertex, and its image under the dilation.

· Describe the relationship between these segments.

· Formulate a conjecture concerning the segments, angles, and areas of each triangle and its image under the dilation.