Exploration of Sine, Cosine and Tangent (HTML5)

This applet is designed to allow students to generate a table of values for the half-chord, the half-chord of the complement, and the length of the tangent line using a slider to change the measure of the angle. With a table populated, the hope is that students can make a conjecture that allows them to define the tangent as the ratio of the sine to the cosine of a given angle. The context is kept to the Unit Circle. If needed, students should be guided to evaluate the 3 functions at 45 degrees (if the relationship is not found more immediately).

 

VTMike

 
Material Type
Activity
Tags
trigonometry  half-chord  tangent 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.2
Views
980
Report a problem
 
 
© 2018 International GeoGebra Institute