Good Morning class! Today we will be learning about Reference Angles!
Stop complaining this will prepare us for the final in May!
Ugh! Ms.Smith we've already learned enough math this year!
I'm just here for attendance...
So what is a Reference Angle? It's the angle that the given angle makes with the x-axis. No matter where the angle ends, the reference angle measures the closest distance of that terminal side to the x-axis.
When on a graph, positive angles go in a clockwise direction. Well of course negative angles go in a counter clockwise direction.
Every positive angle in Quadrant 1 is acute, so the reference angle is the measure of the angle itself.
To find the reference angle measuring (x) degrees for an angle in Q3, the formula is 180 degrees- (x) degrees.