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WorksheetsUnit 9 Lesson 7 Law of Sines
Total questions: 23
Worksheet time: 2hrs 50mins
Name
Class
Date
1.
Identify the Law of Sines
a)
Sin2x + Cos2x =1
b)
Sin(A)/a = Sin(B)/b = Sin(C)/c
c)
Sin(A)Sin(B)Sin(C) = 1
d)
Soh-Cah-Toa
2.
Find AB.
a)
A
b)
B
c)
C
d)
D
3.
Find BC.
a)
A
b)
B
c)
C
d)
D
4.
Find BC
a)
A
b)
B
c)
C
d)
D
5.
Find AC
a)
12
b)
10
c)
23
d)
14
6.
What is the measure of angle A?
a)
50 degrees
b)
60 degrees
c)
78 degrees
d)
74 degrees
7.
Find x, the measure of the angle.
a)
52
b)
33
c)
41
d)
29
8.
find X
a)
52
b)
33
c)
41
d)
29
9.
Find m<B
a)
A
b)
B
c)
C
d)
D
10.
Calculate the length of AC
a)
30
b)
24
c)
27
d)
35
11.
Calculate the length of BC
a)
24
b)
20
c)
27
d)
23
12.
What is the measure of angle A?
a)
58 degrees
b)
61 degrees
c)
78 degrees
d)
74 degrees
13.
Solve for x.
a)
24.3
b)
155.7
c)
24.3 and 155.7
d)
not possible.
14.
Find AB.
a)
A
b)
B
c)
C
d)
D
15.
Find BC
a)
A
b)
B
c)
C
d)
D
16.
What is the measure of angle A?
a)
50 degrees
b)
60 degrees
c)
78 degrees
d)
74 degrees
17.
solve the triangle:
A=65 C=65 a=12
A=65 C=65 a=12
a)
B=50, b=9.9, c=12
b)
B=50, b=10.1, c=12
c)
B=70, b=12.8, c=12
d)
B=40 b=11.2, c=12
18.
Solve each triangle. A=40, B=20, a=2
a)
C=120, b=1.06, c=2.69
b)
C=135, b= 1.56, c=2.50
c)
C= 120, b=2.68. c=3.26
d)
C=45, b=1.06, c=2
19.
Which equation shows how you would use the law of sines to find angle A?
a)
26sin44=23sin A
b)
44sin 26=Asin 23
c)
23sin 44=26sin A
d)
44sin23=Asin 26
20.
Which equation shows how you would use the law of sines to find side c?
a)
19sin41=csin 75
b)
19sin 64=csin 75
c)
64sin 19=75sin c
d)
41sin19=75sin c
21.
Find m∠Y to the nearest tenth.
a)
39°
b)
34°
c)
35.1°
d)
30°
22.
find X
a)
52
b)
33
c)
41
d)
29
23.
Find the value of x.
-round to the tenths
(a)
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