Proof without words: Cosine Rule (餘弦公式)

Author:
Alex CHIK
Topic:
Cosine
GeoGebra Applet
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

Related Topics

Discover Resources

Discover Topics