6.1 Notes - Angles in Radians
A new measurement for angles!
Degree:
Radian:
Consider:
I. Convert from Degrees to Radians:
a.
150°
b. 300°
c. 225°
d. 217°
e. 75°
(Do the following MENTALLY)
f. 315°
g. 270°
h. 240°
i. 120°
j. 300°
II. Convert from Radians to degrees(Do the following MENTALLY)
a.
e.

b.
6
5
6
f.

c.
4
7
4

d.
3
g.
3
2
j.
5
12

2
h.
5
3
c.
17
6
(These are NOT special right triangles)
i.
3
8
III. Draw the angle in standard position and find the measure of the reference angle (  )
a.
13
12
b. 
7
4
IV. Find all co-terminal angles to the given angle in the given domain:
a.

8
, 0    6
b.
10
,  4    0
9
c.
5
,  4    4
11