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Unknown Measures of Similar Figures

Use ratios and proportions to solve for missing lengths in similar figures.

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Unknown Measures of Similar Figures

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Congruent figures are identical in size, shape and measure.


The corresponding sides between two triangles are sides in the same relative position.


A proportion is an equation that shows two equivalent ratios.


Two figures are similar if they have the same shape, but not necessarily the same size.

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