|
1.a
|
π/6
|
b
|
11π/6
|
c
|
π/4
|
d
|
π/18
|
|
e
|
4π
|
f
|
7π/36
|
g
|
4π5
|
h
|
25π/36
|
|
2.a
|
0.593
|
b
|
5.31
|
c
|
0.489
|
d
|
3.12
|
|
e
|
1.22
|
f
|
8.73
|
g
|
3.84
|
h
|
5.22
|
|
3.a
|
15°
|
b
|
126°
|
c
|
67.5°
|
d
|
90°
|
|
e
|
225°
|
f
|
720°
|
g
|
450°
|
h
|
360°
|
|
4.a
|
28.6°
|
b
|
57.3°
|
c
|
131.78°
|
d
|
71.8°
|
|
e
|
359.8°
|
f
|
0.7°
|
g
|
114.6°
|
h
|
180°
|
5.
| a. | Length of arc = 10.5 mm | Area of sector = 26.2 mm2 |
| b. | Length of arc = 30 mm | Area of sector = 225 mm2 |
| c. | Length of arc =28.7 cm | Area of sector = 135 cm2 |
| d. | Length of arc = 20. 6 m | Area of sector = 77.3 m2 |
6. a. The length of the arc is 10.5 cm.
b. The angle is 2 radians.
c. The radius is 10 cm.
d. The radius is 2.38 cm.
e. The radius is 9.67 mm.
