Name :
Score :
Sheet 1
Length of Arc
Example:
Arc length of a sector (s) =
r=7
A
θ=1400
=
in
B
s=?
central angle
x π x radius = θ x π x r
1800
1800
1400 x 3.14 x 7
1800
Length of the arc AB = 17.10 in
Find the arc length of each sector. Round the answer to two decimal places. ( use π=3.14 )
1)
2)
3)
E
Q
1600
210
0
L
8 yd
12 in
P
M
5 ft
500
D
Length of the arc PQ =
Length of the arc DE =
Length of the arc LM =
4)
5)
6)
3f
50
120
t
800
11 yd
12
G
R
B
A
4i
n
0
S
H
Length of the arc GH =
Length of the arc AB =
Length of the arc RS =
7)
8)
9)
Y
24
00
13
Length of the arc YZ =
J
ft
Z
7 yd
400
K
Length of the arc JK =
Printable Math Worksheets @ www.mathworksheets4kids.com
E
in
15 1300
Length of the arc EF =
F
Name :
Score :
Answer Key
Sheet 1
Length of Arc
Example:
Arc length of a sector (s) =
r=7
A
θ=1400
=
in
B
s=?
central angle
x π x radius = θ x π x r
1800
1800
1400 x 3.14 x 7
1800
Length of the arc AB = 17.10 in
Find the arc length of each sector. Round the answer to two decimal places. ( use π=3.14 )
1)
2)
3)
E
Q
1600
210
0
L
8 yd
12 in
P
M
5 ft
500
D
Length of the arc PQ = 43.96 in
Length of the arc DE =
4)
5)
22.33 yd
6)
50
3f
t
12
800
11 yd
120
R
B
A
G
Length of the arc LM = 4.36 ft
4i
n
0
S
H
Length of the arc GH = 23.03 yd
Length of the arc AB =
7)
8)
4.19 ft
Length of the arc RS =
8.72 in
9)
Y
24
00
13
Length of the arc YZ =
J
ft
Z
54.43 ft
7 yd
400
E
K
Length of the arc JK =
Printable Math Worksheets @ www.mathworksheets4kids.com
4.88 yd
in
15 1300
Length of the arc EF =
F
34.02 in