Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Proof Without Words: Addition Formula for Sines
Author:
Steve Phelps
Topic:
Addition
,
Sine
How does this dissection proof demonstrate sin(A+B) = sin(A) cos(B) + sin(B) cos(A) ?
GeoGebra
New Resources
Rose Curve - A Classical Construction
Angles and Intersecting Lines: Quick Investigation
Witch of Agnesi - A Classical Construction
Cross Product in 2D and 3D
Play C3 E3 G3 C4_C4
Discover Resources
Minkowski Train
Rhombus/square
orthocenter
A.1.11.3 Are you ready for more?
Slope
Discover Topics
Conditional Probability
Logarithmic Functions
General Quadrilateral
Ellipse
Tangent Function