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G.SRT.1 Dilations

This applet is designed to help you discover what happens to the sides, vertex points and area of triangles when the triangle is dilated, enlarged or reduced. The orange triangle is the original. Change its dimensions and then change the blue triangle according to a scale factor of 3,4,1/3, 1/2...
What are the segment numbers telling you? What is the triangle poly1 = 4.5 telling you? What do you notice about the changes in the points? Segments? Triangle areas? Can you make a dilation with a scale factor of ½? Can you do a different shape?