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Trigonometry Review Flashcards | StudBud
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Trigonometry Review
Trigonometry Review
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Questions
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Answers
1
How would the
inverse sine
of 7/14 be written?
sinθ=\frac{7}{14}
sin^{-1}(\frac{7}{14})=θ
sin^{-1}θ=\frac{7}{14}
sin\left(\frac{7}{14}\right)=θ
2
The angle of depreciation in this example is 15 degrees
True
False
3
What is the angle of elevation from the buoy in this diagram??
90 degrees
10 degrees
120 ft
80 degrees
4
Sin(X) = ________
\frac{14}{14}
\frac{10}{14}
\frac{14}{10}
\frac{10}{10}
5
Find X
x = 7.63
x = 8.39
x = 6.55
x = 9.38
6
This photo shows an example of an angle of elevation
False
True
7
Inverse
trigonometry functions are used to find the value of an angle
True
False
8
This photo shows an example of an angle of depression
False
True
9
Tangent = adj / opp
True
False
10
What is the sine of angle P
\frac{8}{15}
\frac{8}{17}
\frac{15}{17}
\frac{8}{15}
11
What is the value of the angle of depression?
35 degrees
20 degrees
55 degrees
90 degrees
12
Angle of elevation is formed by a horizontal line and an observer’s ____________ to something above the horizontal line.
View Point
Viewing Spot
Looking Line
Line of Sight
13
Cos(Z) = _______
\frac{14}{10}
\frac{10}{10}
\frac{14}{14}
\frac{10}{14}
14
An angle of elevation and angle of depression are alternate interior angles
False
True
15
Sin(Z) = _________
\frac{15}{25}
\frac{15}{15}
\frac{25}{15}
\frac{25}{25}
16
Cos = Adj / Hyp
True
False
17
the
"CAH"
in SOH-CAH-TOA means tangent=opp/adj
False
True
18
We can use inverse trigonometry functions to find an angle theta (θ)
True
False
19
Which trigonometric function is used to solve for x ?
Cosine
Tangent
Pythagorean Theorem
SIne
20
Which is the correct equation to solve for the value of angle X?
∠X=\cos^{-1}\left(\frac{15}{25}\right)
∠X=\tan^{-1}\left(\frac{15}{25}\right)
∠X=\sin^{-1}\left(\frac{15}{25}\right)
21
What Acronym is used to remember trigonometry functions??
HOS HAC AOT
SOH CAH TOA
22
Sine, Cosine, and Tangent are the three basic trigonometry functions
True
False
23
Which of these is true in regard to the position of XY from angle Z??
Hypotenuse
Opposite
Adjacent
Left
24
The
Tangent
of an angle uses the
opposite
AND
adjacent
sides of a given triangle
True
False
25
If the angle of elevation in the diagram is 53 degrees, then the angle of depression is 37 degrees.
Yeah of course! Why wouldn't it be 37 degrees
No, alternate interior angles are equal to each other so its 53 degrees
