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Box and Ribbon Initial Model
Author:
leeb
This might help you get started with the Box and Ribbon Problem
New Resources
Open Middle: Pythagorean Theorem (2)
Plane & Sphere Intersections
Dissection Proofs of Pythagoras' Theorem
Parallel Lines and Angle Measures (1)
Parabola and Dandelin Sphere
Discover Resources
Circular Paraboloid of Revolution
perpendicular bisectors
The first activity and the notion of trajectory
Least-Squares Regression Lines
Incenter - 2019
Discover Topics
Line Segment
Incircle or Inscribed Circle
Parallelogram
Difference and Slope
Confidence Interval