lesson
Theorem: Tangents from an External Point Are Equal in Length
Apply the theorem that tangent segments from a common external point are congruent.
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Circle Theorems: Tangents and Secants
7 lessons
Goal
Apply theorems about tangents and secants, including perpendicularity, equal tangent lengths, angle formation, and segment product relationships, to solve circle problems.
7 lessons
0 of 7 done
- Tangent Lines and Radius PerpendicularityUp next
- Number of Tangents from a Point on a CircleNot started yet
- Theorem: Tangents from an External Point Are Equal in LengthYou are here
- Applying Tangent Properties to Solve Circle ProblemsNot started yet
- Angles Formed by Secants and TangentsNot started yet
- Chord, Secant, and Tangent Segment RelationshipsNot started yet
- Applying Circle Theorems to Non-Contextual ProblemsNot started yet
Learning standards covered
111.41(b)(12)(A)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Gradeapply theorems about circles, including relationships among angles, radii, chords, tangents, and secants, to solve non-contextual problems;
Open Global Standard:OGM.11.GEO.5
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.5OGM.11.GEO.1