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Unit 10 of 18
Quadrilaterals
Four-sided structure.
Every topic follows the curriculum standard
Learn→See→Try→Explain→Verify→Challenge→Transfer→Master
Topics in this unit
5 topics. Each card opens a full topic workspace and supports all eight learning actions.
Parallelograms
Definition and properties
Parallelogram Proofs
Diagonals bisect
Rectangles, Rhombi & Squares
The hierarchy
Trapezoids
One pair of parallel sides
Three-pathway connections
Study this unit at three depths — current-grade mastery, advanced thinking, and competition mathematics.