Instructional Video

How Do You Find Missing Measurements of Similar Figures Using a Proportion?

Curated and Reviewed by Lesson Planet

Two similar triangles have the same angles, but their legs have different lengths. This means their angles are congruent, and thusly, their corresponding sides are congruent. So there is a missing measurement that needs to be found. Set up a proportion ratio and do the math to find the missing measurement.

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6th - 8th
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