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Law of cosine using obtuse triangle
Author:
Malin Christersson
Topic:
Cosine
Drag the red points!
GeoGebra
New Resources
Weighing Scales: Lessons and Practices
Equilateral Triangle Cross Sections
Untitled
Exploring Number of Squares on the Diagonal of a Rectangle
Weighing Scales (kg & g)
Discover Resources
Reflections Lab
Polar of a point in UnivHypGeom
Reflection Angle - Circle
INC-Geo-2017-AngleAddition
Discover Topics
Right Triangles
Distributions
Algebra
Incircle or Inscribed Circle
Circumcircle or Circumscribed Circle