11.1 Review Worksheet (continued)
Find each length to the nearest tenth. 20. CD
21. RS
R
Q
A
3
2.4
P
D
C
S
B
1.7
11.1.3 Sector Area and Arc Length Find the area of each sector. Give your answer in terms of π and rounded to the nearest hundredth. 22. sector DEF 23. sector GHJ 24. sector RST
150˚
R
47˚ T
H
F
9 in.
S
2 ft
D 20 m
100˚
E
J
G
25. A lunette is a semicircular window that is sometimes placed above a doorway or above a rectangular window. To the nearest square inch, what is the area of the lunette?
40 in.
Find the area of each segment to the nearest hundredth. 26. 10 m 45˚ A B C 27. 120˚ 5 in. M K L
28.
R
1 ft
60˚ S T
249
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