1. In the right triangle shown in the diagram below, what is the value of x to the nearest whole number? 30° 24 A. 12 B. 14 C. 21 D. 28
1. In the right triangle shown in the diagram below, what is the value of x to the nearest whole number? 30° 24 A. 12 B. 14 C. 21 D. 28
Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter7: Triangles
Section: Chapter Questions
Problem 1GP
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Concept explainers
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
Question
Transcribed Image Text:1. In the right triangle shown in the diagram below,
what is the value of x to the nearest whole
number?
Answers Only
1.
30°
2.
24
A. 12 B. 14 C. 21
D. 28
2.
In the accompanying diagram, the legs of right
triangle ABC are 4 and 3, and the hypotenuse is 5.
What is the value of tanA?
A.
В.
с. 4
In right triangle ABC shown below, AB = 18.3 and
б, вс- 11.2.
5.
4
Which equation could be used to find the measure
of angle D in the right triangle shown in the
diagram below?
11.2
A
18.3
13
What is the measure of ZA, to the nearest tenth
of a degree?
A. 31.5
В. 37.7
C. ,52.3
D. 58.5
12
F
B. cosD =
In the accompanying diagrám of AABC, which
expression can be used to determine mLA?
A. cos D =
60
D. sin D =
C. sin D =
A. sinA =
18
In AABC, the measure of ZB = 90°, AC = 50,
AB = 48, and BC = 14. Which ratio represents the i
B. cosA = 2
Б
4.
12
C. cosA =
48
D. 19
tangent of ZA?
14
18
48
C. 0
A.
B.
D. tanA =
3.
Transcribed Image Text:In the accompanying diagram of ACDE,
mLD = 90°, mLC = 28°, and ED = 15. Which
equation can be used to find CD?
7.
Answks
15
A. sin 28° =
E
CD
15
CD
B. sin 28° =
28°
15
D.
15
C. tan 28° =
9.
CD
CD
D. tan 28° =
10.
15
1.
In right triangle BCD, BD = 12, mLC = 90, and
MLDBC = 47. Find DC to the nearest tenth.
12.
D
13.
14
47
Which equation can be used to find the value of x
9.
in the right triangle shown?
A. cos 20° =
12
12
B. sin 20° =
20
12
12
C. cos 20° =
D. cos 70° = 12
%3D
10. Find a.
B. 26.9
A. 19
45
С. 38
D. 53.7
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