IM2.6.7 SRT3: SOHCAHTOA
SOHCAHTOA
The ratios you worked with in the last two tasks are the three basic trigonometric ratios, which hold for all right triangles because of similarity. Play with the applet below to learn more, or visit this website: Sine, Cosine, Tangent (Mathisfun)
1. Drag point C to change the side lengths without changing the angle. What do you notice about the sine, cosine, tangent values? Why is this true?