1.
Change -120° to radian measure in terms of
.
A.
B.
C.
-
D.
-
Hint
2.
Change
radians to degree measure.
A.
-135°
B.
-145°
C.
135°
D.
145°
Hint
3.
Evaluate tan
.
A.
-
B.
-
C.
D.
Hint
4.
The diameter of a circle is 18 inches. If a central angle measures 64°, find the length of the intercepted arc.
A.
about 10.1 in.
B.
about 18.2 in.
C.
about 14.6 in.
D.
about 20.1 in.
Hint
5.
A sector has an area of 14.5 square meters. The radius of the circle is 4 meters. Find the radian measure of the central angle to the nearest tenth.
A.
1.8 radians
B.
14.6 radians
C.
7.3 radians
D.
3.6 radians
Hint