Problem 82 of 7
Explain why dilation preserves angle measure but changes length for any non-isometric dilation.
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distinguish similarity from congruence.
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Explanation must distinguish similarity from congruence.
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1. State that dilation scales distances uniformly.
2. Explain uniform scaling preserves shape and angle measure.
3. State that lengths change by factor k.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Saying dilation preserves length unless k=1.