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Unit 7 Test Review
Unit 7 Test Review
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Unit 7 Test Review
Flashcards
29 cards
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Questions
29
Answers
1
To use a trigonometric function, a triangle must be what?
Right
Acute
Isosceles
Obtuse
2
Find c. Round to 2 decimal places.
11.38
5.66
11.40
5.67
3
For the triangle below, which option is greater in value?
Sin(R)
Sin(S)
4
Find c. Round to 2 decimal places.
5.97
2.64
9.94
8.52
5
A hypotenuse and a leg of a rt ∆ triangle have lengths 61 and 11. Find the length of other leg.
35
5sqrt(2)
60
sqrt(3842)
6
Find h. Round to 2 decimal places. Don't forget Units!!
32.49 meters
307.77 meters
32.49
307.77
7
The short leg of a 30-60-90 triangle has a length of 7. Determine the length of the hypotenuse.
7sqrt(2)
7sqrt(3)
sqrt(14)
14
8
The length of AD in the picture is the geometric mean between which two segments?
AC and CD
CD and AB
CD and DB
DB and AD
9
An acute < of a right ∆ has a measure of n. If sin n
o
= 3/5, what is tan n
o
?
5/3
4/5
4/3
3/4
10
In ∆RST, m<S = 90. What is the value of sin T?
RT/RS
RS/RT
ST/RT
RS/ST
11
Determine the altitude.
5 Sqrt(55) cm
5 Sqrt(30) cm
15 Sqrt(3) cm
15 Sqrt(5) cm
12
A building's shadow is 40 ft when the sun's < of elevation is 58
o
. Find the approximate height.
81 ft
64 ft
34 ft
75 ft
13
What is the value of x?
X = 9.10
X=7.92
X = 9.67
X = 8.77
14
What is the geometric mean between 4 and 9
SQRT (36)
6.5
6
36
15
Find the length of AD.
3√5
√14
14
45
16
Which of these is NOT a special right triangle?
20-70-90 degrees
45-45-90 degrees
30-60-90 degrees
17
One side of a square has length "s". Find the length of the diagonal.
2 Sqrt(s)
(s/2) x Sqrt(3)
s Sqrt(2)
s Sqrt(3)
18
The angle of depression and the angle of elevation are?
Complementary
Equal
Supplementary
Opposites
19
What is the value of Cos(39), rounded to the nearest ten-thousandth?
.777
.7771
.7
.7772
20
Solve for x below
2
48
4√3
4
21
The angle of elevation is created when the observer is looking...
At a math book
At the horizon line
Upward
Downward
22
Answer the following question.
46.2 degrees
45.7 degrees
43.9 degrees
44.3 degrees
23
What mode should you set your calculator to when using trigonometry?
Normal
Scientific
Radian
Degree
24
Can the following side lengths make a triangle? 3,4,6
Yes
No
25
A Pythagorean triple is.....
3 numbers who satisfy Pythagorean theorem
3,5,9
When Pythagoras hits a triple in Greek baseball
3 whole numbers who satisfy the Pythagorean theorem
26
The acronym used to remember the trig functions is
SOHCMYTOA
SOHCAHTOA
SOHNOTFUN
SOHMYGOD
27
Which is the correct Pythagorean theorem, given right triangle ABC?
A2+B2+C2
A2 - B2=C2
A2+B2=C2
28
What is the definition of geometric mean?
The negative square root of the product of two numbers
The positive square root of the difference of two numbers
The positive square root of the sum of two numbers
The positive square root of the product of two numbers
29
In a right triangle, the two shorter sides are referred to as ____________.
legs
hypotenuse
arms
