Becoming familiar with common radian measure angles

Each of the colored squares seen further below is at an angle that is a multiple of pi / 12 radians (15 degrees). Carefully replace the numbers 2 and 1 in the equation below and then "shoot" the gun to hit the colored targets. On your own paper, write down the color of the target and the angle in radians needed to hit the target.

If the pi symbol disappears, type 'p (apostrophe p) to re - type it. 

If the graph displays "Cannot draw this graph", then try putting in a valid gun angle and clicking on the graph.  If this does not bring the graph back, reload the page in your browser.

1. Red
2. Orange
3. Green
4. Blue
5. Magenta
6. Purple
7. Describe in words which way the shot will go for a gun angle of pi/2? Try to imagine the answer without trying it out on the gun. Check your imagined result with the gun.

Developed by Dana Lee Ling with the support and funding of a U.S. Department of Education Title III grant and the support of the College of Micronesia - FSM. Notebook material ©1999 College of Micronesia - FSM. For further information on this site, contact dleeling@comfsm.fm. Designed and run on a Gateway GP6-350 with 64 MB RAM, Windows 98 OS using MathView 2.5, Microsoft FrontPage 98, and Microsoft Internet Explorer 5.0.  All equipment and software purchased through a U.S. Dept. of Education Title III grant.