Sherry S. answered 05/23/16
Tutor
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Master of Education with 20+ years' experience
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"A dilation is a transformation that changes the size of a figure. It can become larger or smaller, but the shape of the figure does not change. To complete a dilation, two things are needed. The first is a center point (or fixed point), which is usually only mentioned when the dilation must be drawn." -- from study.com