Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Proof without words: Cosine Rule (餘弦公式)
Author:
Alex CHIK
Topic:
Cosine
GeoGebra
Source: Nelsen, R. B. (1993). Proofs without Words - Exercises in Visual Thinking. The Mathematical Association of America. GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
Finding Average Rate of Change of a Function
Construct a Conic
Explore the invariant lines of matrix {{-2,5},{6,-9}}
alg2_05_05_04_applet_exp_fxn_flvs
Poorly Drawn Parallelograms 3
Discover Resources
Tangent Investigation
Translations
construction 2
q==5
test_combine_pulse
Discover Topics
Complex Numbers
Area
Dilation
Symmetry
Combinatorics