	Java Games: Matching, concentration, word search, and flashcards.

chapter 8 similarity vocab

What is the meaning of each term?

Tools

A	B
similar figures	figures that are the same shape but are different sizes
ratio	comparison of numbers
proportion	two or more ratios that are equal
dilation	size-change transformation
expansion	dilation whose scale factor is greater than 1
scale factor	number that determines how big or small an object will get when dilated
contraction	dilation whose scale factor is smaller than 1
center of dilation	every line passing through corresponding points on the image and the pre-image pass through this point