Reduction and Enlargement

This applet shows the enlargement/reduction of a triangle with scale factor k and center O.




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Here are several of the activities that the teacher/student can do:

• The teacher may hide some elements in the objects (using the check box), and let the students predict the position of the missing objects.
• The students may use the distance, area and angle tools to investigate the relationship between the two triangles. 

Click here to download applet.