Final answer:
When a figure is dilated, the property that does not change is the angle measures.
Step-by-step explanation:
When a figure is dilated using a scale factor, certain properties change while others remain the same. In this case, the property that does not change is the angle measures. When a figure is dilated, the side lengths are multiplied by the scale factor, the area is multiplied by the scale factor squared, and the perimeter is multiplied by the scale factor.
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