since we just reviewed this week on ch 7 and ch8 i will go over some important stuff in ch 7. the main thing in ch 7 is converting degrees to radians and radians to degrees. now there are two formulas to do this. the first formula is degrees to radians. basically all you do is do the (degrees) * (pi)/180 or you can just do (degrees) / 180 and put pi next to it. to convert from radians to degrees is simple. the formula is radians * 180/(pi). in most cases pi will cancel and kleave you with a degree put sometimes it will not. examples will be listed below.
EX: convert 196 (degrees) to radians
196 / 180 (pi)
= 49(pi) / 45
b) convert 3(pi) / 4 to dergees
3(pi) / 4 * 180 / (pi)
pi's cancel
=3/4 * 180
= 135 (degrees)
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