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Discovering Sine, Cosine, and Tangent in Right Triangles
Author:
Mr. Mundey
,
Jennifer Silverman
Use the slider and point D to figure out how sin(A), cos(A), and tan(A) are related to a, b, and c and to the size of the triangle.
GeoGebra
New Resources
van Aubel's Theorem
Bottema's Theorem
Introduction
Rotating Points (Optical Illusion)
Linear Cross Section Exercise
Discover Resources
Practice Task AS91256 Reflection Task (16 May 2016)
Untitled
multiplying & dividing uncertain measurements
Plinko
GeoGebra day at MoMath
Discover Topics
Expected Value
Straight Lines
Arithmetic Operations
Inequalities
Vectors 2D (Two-Dimensional)