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Quadrilateral Diagonal Properties

Special quadrilaterals are characterized by their diagonals: a parallelogram's diagonals bisect each other, a square's are equal and perpendicular bisectors. Learners use these defining properties to find lengths and angles. It sharpens classification of quadrilaterals by structural property rather than appearance.

grade 4 GeometryMeasurement & data Draw a DiagramVisualize Spatial Relationships

Builds on: Angle Facts in a Figure

Progression (2)

g4 1. Diagonals of a parallelogram bisect each other Geometry · foundational
g4 2. Square diagonals are equal and perpendicular bisectors GeometryMeasurement & data · advanced