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Learning Goal

‹7 of 9 in this skill_area›

Similar triangles and proportional sides

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Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework

"Use concepts and theorems relating to congruence and similarity of triangles to solve problems." "Determine which statements may be required to prove certain relationships or to satisfy a given theorem." "Apply knowledge that changing by a scale factor of k changes all lengths by a factor of k, but angle measures remain unchanged."

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"Use concepts and theorems relating to congruence and similarity of triangles to solve problems."
"Determine which statements may be required to prove certain relationships or to satisfy a given theorem."
"Apply knowledge that changing by a scale factor of k changes all lengths by a factor of k, but angle measures remain unchanged."

What you'll learn

  1. Determine whether two triangles are similar using Angle-Angle (AA) similarity
  2. Identify corresponding sides and set up correct proportions between similar triangles
  3. Solve proportions to find unknown side lengths
  4. Recognize and apply similarity in overlapping, nested, and parallel-line configurations

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