Open source cross-platform software of geometry, analysis and simulation - Yves Biton

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Figures for teaching trigonometry

modification Saturday 9 May 2018.

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You can download these figures underneath :

Figures for teaching trigonometry

All the figures are free of use under cc by sa licence.

Remarquable cosine and sine values
Winding a line around the trigonometric circle
Measures of an oriented angle
Point on trigo circle by polar angle
Sign of cosine and sine functions
Curve of cosine function
Curve of sine function
Associated angles
Trigonometric equations


Cosine and sine of remarquable angles
Click on the buttons to change the angle

Winding a line around the trigonometric circle





Measures of an oriented angle


Point on trigo circle by polar angle


Sign of cosine and sine functions


Curve of cosine function



Curve of sine function



Associated angles






Trigonometric equations

You can change the formula for m on the figure (for instance use sqrt(3)/2)


You can change the formula for m on the figure (for instance use sqrt(3)/2)