Teaching Primary Trigonometry Functions - Sine Cosine Tangent Help - Game Tips:

- When angle A is in standard position at the graph's origin (0,0) then sin A equals (y/r).
    Since r is the hypotenuse of a right triangle, r can be found from point D(x,y) using x2 + y2 = r2 .
    Consequently, sin A can also be described as (opposite side)/(hypotenuse).

- When angle A is in standard position at the graph's origin (0,0) then cos A equals (x/r).
    Also cos A can be described as (adjacent side)/(hypotenuse).

- When angle A is in standard position at the graph's origin (0,0) then tan A equals the ratio = (y/x).
    Also tan A equals (opposite)/(adjacent).

- It may take a minute to load the game at dial-up speeds.
- The game can be played using the mouse by itself or using the keyboard by itself.
- If the game doesn't respond to keyboard input, click inside the game area to reset the game's focus.
- Adjust the game's speed by pressing the + or - key repeatedly.



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