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Unit 4 of 18
Parallel Lines & Transversals
The angle theorems in full.
Every topic follows the curriculum standard
Learn→See→Try→Explain→Verify→Challenge→Transfer→Master
Topics in this unit
8 topics. Each card opens a full topic workspace and supports all eight learning actions.
Transversals Defined
Lines crossing parallels
Corresponding Angles Theorem
Same position, equal measure
Alternate Interior Angles Theorem
Z-structure between parallels
Alternate Exterior Angles Theorem
Outside the parallels
Same-Side Interior Angles
Supplementary pairs
Vertical Angles Theorem
Opposite angles from intersection
Linear Pairs
Adjacent supplementary angles
Three-pathway connections
Study this unit at three depths — current-grade mastery, advanced thinking, and competition mathematics.