00:01
All right.
00:02
So for number 33, we want to convert 90 degrees to its equivalent radian measure.
00:10
Okay.
00:10
And you're going to notice, well, i shouldn't say notice, but you're going to see the same angles over and over and over again as you navigate your way through this chapter and trigonometry in general.
00:26
Because you'll learn that radian angle measures are more commonly used because they're more practical.
00:34
Application, not all things.
00:36
For instance, navigation problems and angles of elevation, problems, and things like that, but they always use degrees.
00:42
But you need to get familiar with both.
00:45
And it's a very simple conversion to convert from degrees to radiance.
00:50
You take the angle that you're given and multiplied by the conversion ratio pi to 180 degrees.
00:58
Because pi and 180 are the same thing...