1, Lesson 5, Unit 3, Grade 8, EngageNY icon
Instructional Activity

Concept Development

Lesson 5. Unit 3. Grade 8 EngageNY

EngageNY5 min(s)

This Instructional Activity is a part of the Lesson 5, Unit 3, Grade 8. Begin by having students restate (in their own words) the fundamental theorem of similarity (FTS) that they learned in the last lesson. The converse of a theorem begins with the conclusion and produces the hypothesis. FTS concludes that lines are parallel and the length of segment is the length of segment multiplied by the scale factor.

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