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FOURTH QUARTER - TRIGONOMETRY

Total questions: 35

Worksheet time: 1hrs 1mins

Name
Class
Date
1.

Using the figure above, what is the value of sin A?

a)

45\frac{4}{5}

b)

34\frac{3}{4}

c)

43\frac{4}{3}

d)

54\frac{5}{4}

2.

What trigonometric ratio is the inverse of cosine?

a)

cot

b)

csc

c)

sec

d)

sin

3.

What is the value of cos B in the figure?

a)

34\frac{3}{4}

b)

54\frac{5}{4}

c)

45\frac{4}{5}

d)

35\frac{3}{5}

4.

What is the value of tan B in the figure?

a)

56\frac{5}{6}

b)

1011\frac{10}{11}

c)

1112\frac{11}{12}

d)

1211\frac{12}{11}

5.

Using the figure, which mnemonic to use in finding c, using ∠A as a reference angle?

a)

CAH

b)

TOA

c)

SOH

d)

SHA

6.

Using the figure, which mnemonic to use in finding ∠B?

a)

CAH

b)

TOA

c)

SOH

d)

CAO

7.
cos 87
a)
.05
b)
.569
c)
.0523
d)
.5700
8.

What is the correct equation to solve for x?

a)

tan45°=x13\tan45\degree=\frac{x}{13}

b)

cos45°=x13\cos45\degree=\frac{x}{13}

c)

sin45°=13x\sin45\degree=\frac{13}{x}

d)

sin 45°=x13\sin\ 45\degree=\frac{x}{13}

9.

What is the length of the hypotenuse side?

a)

8

b)

15

c)

17

10.
Find the measure of the missing angle.
a)
49o
b)
50o
c)
41o
d)
33o
11.

Choose the correct ratio.

a)

sin Z=513\sin\ Z=\frac{5}{13}

b)

sin X=513\sin\ X=\frac{5}{13}

c)

cos X=1213\cos\ X=\frac{12}{13}

d)

tan Z=125\tan\ Z=\frac{12}{5}

12.

Identify the trigonometric ratio that may be used to find the marked unknown side.

a)

sin 29°=x91\sin\ 29\degree=\frac{x}{91}  

b)

tan 29° = 91x\tan\ 29\degree\ =\ \frac{91}{x}

c)

cos 29° = x91\cos\ 29\degree\ =\ \frac{x}{91}

d)

tan 29°= x91\tan\ 29\degree=\ \frac{x}{91}

13.
Find the measure of the missing angle.
a)
49o
b)
50o
c)
41o
d)
33o
14.

Identify side XZ, with respect to the marked angle.

a)

altitude

b)

hypotenuse

c)

opposite

d)

adjacent

15.

At point on the ground 50 feet from the front of a tree, the angle of elevation to the top of the tree is 48𝑜 . Find the height of the tree.


Which of the following is the correct diagram for the problem?

a)
b)
c)
d)
16.

At point on the ground 50 feet from the front of a tree, the angle of elevation to the top of the tree is 48𝑜 . Find the height of the tree.


Which of the ratio is the appropriate for the problem?

a)

tanθ=oppositehypotenuse\tan\theta=\frac{opposite}{hypotenuse}

b)

sinθ=oppositehypotenuse\sin\theta=\frac{opposite}{hypotenuse}

c)

cosθ=adjacenthypotenuse\cos\theta=\frac{adjacent}{hypotenuse}

17.

At point on the ground 50 feet from the front of a tree, the angle of elevation to the top of the tree is 48𝑜 . Find the height of the tree.

a)

45.02 ft

b)

55.53 ft

c)

50.2 ft

d)

48.14 ft

18.

A ladder is leaning against a wall. The foot of the ladder is 6.5 feet from the wall. The ladder makes an angle of 74o74^o   with the level ground. How high on the wall does the ladder reach? 

a)

20.15 ft

b)

22.67 feet

c)

25.63 feet

d)

15.36 feet

19.
 Find side AB?
a)
20 m
b)
5 m
c)
11.54 m
d)
8.66 m
20.
Solve for the misssing distance
a)
18.9
b)
19.5
c)
47
d)
27.5
21.
Solve for the missing angle.
a)
50.5 degrees
b)
12.7 degrees
c)
36.9 degrees
d)
72.2 degrees
22.
Find AB
a)
10
b)
8
c)
6.1
d)
4.9
23.
What is the measure of angle A?
a)
58 degrees
b)
61 degrees
c)
78 degrees
d)
74 degrees
24.
Find AC
a)
12
b)
10
c)
23
d)
14
25.
find X
a)
52
b)
33
c)
41
d)
29
26.

Find angle Z

a)

20.15°

b)

71.23°

c)

51.06°

d)

57.71°

27.
Find XZ
a)
16.004 meters
b)
544.165 meters
c)
34.7 meters
d)
1204.165 meters
28.

Find the missing side.

a)

15.9 in.

b)

22.8 in.

c)

19.2 in.

d)

521.1 in.

29.

To approximate the length of a marsh, a surveyor walks 425 meters from point A to point B. Then the surveyor turns 65º and walks 300 meters to point C. Approximate the length AC of the marsh.

a)

250

b)

615

c)

500

d)

300

30.
You need a ladder that will reach up a 25 foot tall house when placed 10 feet away from the house. How tall does the ladder need to be?
a)
25 feet
b)
26 feet
c)
27 feet
d)
28 feet
31.
What is the length of side x?
a)
6.57 cm
b)
7 cm
c)
7.44 cm
d)
26.33 cm
32.
Find the measure of the missing angle.
a)
64o
b)
26o
c)
61o
d)
8o
33.
Find the value of y.
a)
11√2
b)
11
c)
22
d)
11/√2
34.
Solve for x. Round to the nearest tenth.
a)
19.0
b)
24.3
c)
21.0
d)
20.2
35.
Solve for x. Round to the nearest tenth.
a)
10.4
b)
8.9
c)
31.2
d)
11.9