Below shows ∠DAC.
You can shift the point C to change the size of ∠DAC.
Instructions:
- Adjust the size of ∠DAC.
- Check the boxes.
- Observe the values of the trigonometric functions: \(\sin \theta \), \(\cos \theta \) and \(\tan \theta \).
- Observe the values of the trigonometric functions: \(\sin \left( {180^\circ - \theta } \right)\), \(\cos \left( {180^\circ - \theta } \right)\) and \(\tan \left( {180^\circ - \theta } \right)\).
- Repeat steps 1 ~ 4 for other sizes of ∠DAC.
Supplementary Angles: Angles that add up to \({180^\circ }\).
Download the GeoGebra file: http://www.geogebratube.org/material/download/format/file/id/44998
Download the GeoGebra Worksheet: http://db.tt/3guaUADv
Download the Worksheet: http://db.tt/6MFfkRFB
