Pre-Calculus 12: Ch.6 Worksheet #2
1.
2.
Convert each angle from degrees to radians:
a.
30°
e.
55°
b.
45°
f.
210°
c.
90°
g.
190°
d.
150°
h.
75°
Convert each angle from radians to degrees:
a.
1
e.
2𝜋
9
b.
2.5
f.
3𝜋
5
c.
𝜋
9
g.
3𝜋
4
d.
2𝜋
h.
9𝜋
4
3.
Determine each arc length:
a.
b.
1.25π
53◦
34 cm
18 cm
4.
Determine each sector angle in degrees:
a.
47 cm
150 cm
b.
62 cm
23 cm
5.
Determine the radius of each circle
a.
b.
172 cm
165◦
5
80 cm
6.
Three barrels, each with a 60 cm diameter are stacked as shown. How long is the strap used to
tie the barrels (assume that the strap has no overlap)?