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WorksheetsSine rule and Cosine rule
Total questions: 20
Worksheet time: 30mins
Name
Class
Date
1.
What rule should you use?
a)
Sine
b)
Cosine
2.
What rule should you use?
a)
Sine
b)
Cosine
3.
What rule should you use?
a)
Sine
b)
Cosine
4.
a)
10.1
b)
10.0
c)
10.9
d)
8.86
5.
a)
6.99
b)
6.33
c)
13.59
d)
7.83
6.
What is the measure of angle A?
a)
50 degrees
b)
60 degrees
c)
78 degrees
d)
74 degrees
7.
When using the sine rule how many parts (fractions) do you need to equate?
a)
All 3 parts
b)
1 part
c)
2 parts
8.
Which of the following formulas is the Cosine rule?
a)
c2 = a2 + b2 - 4ac + cosA
b)
c2 = a2 - b2 - 2abcosC
c)
c2 = a2 + b2 - 2abcosC
d)
(cos A)/a = (cos B)/b
9.
Which rule can be used directly for this triangle?
a)
The Sine Rule
b)
The Cosine Rule
c)
The Area of a Triangle
d)
Pythagoras' Theorem
10.
What information has been given here?
a)
SSS
b)
SAS
c)
AAS
d)
SSA
11.
What information has been given here?
a)
SSS
b)
SAS
c)
AAS
d)
SSA
12.
What information has been given here?
a)
SSS
b)
SAS
c)
AAS
d)
SSA
13.
What information has been given here?
a)
SSS
b)
SAS
c)
AAS
d)
SSA
14.
What information has been given here?
a)
SSS
b)
SAS
c)
AAS
d)
SSA
15.
What rule should you use?
a)
Sine
b)
Cosine
16.
What rule should you use?
a)
Sine
b)
Cosine
17.
Find the missing side x
a)
60.5mm
b)
10.3mm
c)
30.1mm
d)
58.1mm
18.
Find the missing side x
a)
30.4cm
b)
925cm
c)
42.3cm
d)
21.9cm
19.
Find the missing angle θ
a)
68o
b)
133o
c)
116o
d)
121o
20.
Find AC
a)
12
b)
10
c)
23
d)
14
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