lesson
Converse of the Triangle Proportionality Theorem
Apply the converse to determine whether a line is parallel to a side of a triangle based on proportional segments.
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Proportions and the Triangle Proportionality Theorem
7 lessons
Goal
Set up proportions to solve problems with similar triangles, and prove and apply the Triangle Proportionality Theorem and its converse.
7 lessons
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- Solving Problems with Similar TrianglesUp next
- Setting Up Proportions with Similar TrianglesNot started yet
- The Triangle Proportionality TheoremNot started yet
- Solving Problems with the Triangle Proportionality TheoremNot started yet
- Proving the Triangle Proportionality TheoremNot started yet
- Converse of the Triangle Proportionality TheoremYou are here
- Midsegment Theorem as a Special Case of ProportionalityNot started yet
Learning standards covered
111.41(b)(8)(A)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Gradeprove theorems about similar triangles, including the Triangle Proportionality theorem, and apply these theorems to solve problems; and
Open Global Standard:OGM.11.GEO.4
111.41(b)(1)(F)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Gradeanalyze mathematical relationships to connect and communicate mathematical ideas; and
Open Global Standard:OGM.11.GEO.1
OGM.11.GEO.4OGM.11.GEO.1