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Cosine Rule
Author:
sass math dept
,
slik
A demonstration of the Cosine rule. Drag the red points.
GeoGebra
The proof for angle A being acute is given. Determine the proof of the Cosine Rule when angle A is obtuse.
New Resources
seo tool
koch tool
Positive and Negative Space
apec
quarter of tetrahedron
Discover Resources
Activity 1.4 - Lesson - Transformation
DragProofEquilateral
Homework 8/22
Indirect Proportion Exploration
gerade_an_kugel_spiegeln
Discover Topics
Dilation
Mode
Polygons
Orthocenter
Special Points