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Review Module 2- part 2 Flashcards | StudBud
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Review Module 2- part 2
Review Module 2- part 2
24 terms
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Trigonometry
Flashcards
24 cards
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Practice quiz
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Questions
24
Answers
1
Use Law of Sines to:
28
32
14
18
2
Use the law of cosines to find r.
38
39
33
40
3
Which sides represent the
legs
of the right triangle?
x and y
x and z
not here
y and z
4
What is Trigonometry used for?
To find Gingers Souls
To trigger the need to measure something.
To convert degrees to radians.
To find missing sides and angles length
5
Multiply the radicals
36
6√6
√36
6
6
The Law of Cosines is given by:
c2= a2 + b2 – abCos C
c2= a2 + b2 – bcCos A
c2= a2 + b2 – 2abCos C
c2= a2 + b2 + 2abCos C
7
What trigonometry fact do we need to solve x?
30-60-90 triangle
sin 30 = o/h
45-45-90 triangle
tan 45 = o/a
8
Which one is
not
a trigonometry function?
SIN
TAN
SOC
CSC
9
θ is used in trigonometry, but what is the name of θ?
Meta
Theta
Eta
Keta
10
Use law of cosines and find 'a'
25.3
45.2
28.9
30.1
11
Trigonometry: Knowing that cos x = 3/5, what is sin x?
5/3
3/4
4/5
4/3
12
What is The Law of Sines
Mx+b=y
a2+b2=c2
X2-X1=?
Sin(A)/a = Sin(B)/b = Sin(C)/c
13
What phrase to remember the trigonometry functions
SAH-COA-TOH
SOH-CAH-TOA
SOH-CAH-TAO
SCT-OHO-HHA
14
Trigonometry
12/13
5/12
5/13
13/5
15
Add/Subtract the Radicals
-3√3 -5√6
-2√6
-8√9
9√3 -2√6
16
Simplifying Radicals with Variables
C
D
B
A
17
Can this triangle be solved with Law of Sines?
Yes
No
18
Trigonometry
12/13
13/5
5/13
5/12
19
Which side represents the
hypotenuse
of the right triangle?
z
not here
y
x
20
Special Right Triangles
7.5
5√3
15√2
15√3
21
Special Right Triangles
4√3
8√2
4√2
8√3
22
The two smaller triangles are similar. ∠A corresponds to ∠?
A
C
D
B
23
When do you use the law of cosines
when theres 3 sides
when theres only two sides and an opposite angle
when there's 2 sides and an angle between the sides
24
Divide these radicals
1/6
2/6
2/12
1/12
