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Playing with Parallelograms!
Author:
D Shea
Use the sliders to manipulate the parallelogram. Record what you notice about the angles of the parallelogram as it changes.
GeoGebra
New Resources
Reflection across a line
Volume by Disk/Washer around y
Pitfalls of Disk/Washer Method
Reflection = 180° Rotation about a Line
Reflection Across 2 Parallel Lines
Discover Resources
trigonometry - right triangles: self test
The RedHead\
JST17 10. Section 1a Gradient of a chord on a quadratic curve
MidPointQuadrilateral
Discover Topics
Polygons
Perimeter
Fractal Geometry
Trigonometry
Isosceles Triangles