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y11 apps trigonometry

Total questions: 20

Worksheet time: 30mins

Name
Class
Date
1.

Find the value of a.

a)

13.4

b)

12.9

c)

13.0

d)

12.8

2.

Find the value of c.

a)

19.4

b)

31

c)

15.2

d)

24.2

3.

Find the size of angle X.

a)

0.6

b)

36.2

c)

36.9

d)

36.4

4.
What rule should you use?
a)
Sine
b)
Cosine
5.
What rule should you use?
a)
Sine
b)
Cosine
6.
What rule should you use?
a)
Sine
b)
Cosine
7.
What is the measure of angle A?
a)
50 degrees
b)
60 degrees
c)
78 degrees
d)
74 degrees
8.

Find the unknown side length, c.

a)

6.52

b)

6.38

c)

6.91

d)

6.67

9.

The sides of a triangle are 15 cm, 17 cm and 8 cm. What is its area?

a)

20 cm220\ cm^2

b)

40 cm240\ cm^2

c)

60 cm260\ cm^2

d)

80 cm280\ cm^2

10.

Which option is INCORRECT ?


Heron's Formula is used to find the area of triangle when

a)

Three sides are given

b)

Two sides & perimeter is given

c)

Height is given

d)

Two sides & semi perimeter is given

11.
Find the area of the triangle
a)
24.0 cm2
b)
47.9 cm2
c)
19.7 cm2
d)
23.967 cm2
12.

Find the area of the triangle

a)

27.6m2

b)

28.0m2

c)

26.9m2

d)

26.9cm2

13.

Find the area of the triangle

a)

72.3cm2

b)

84.4cm2

c)

77.9cm2

d)

78cm2

14.
What is the bearing of B from A
a)
025
b)
205
c)
25
d)
155
15.

What is
the Bearing
 of A
from B?
a)
45
b)
130
c)
045
d)
135
16.

Find the bearing of A from B

a)

250o

b)

110o

c)

290o

d)

070o

17.
a)
6.99
b)
6.33
c)
13.59
d)
7.83
18.
a)
20.35
b)
12.72
c)
14.99
d)
21.83
19.
Find the measure of the missing angle.
a)
49o
b)
50o
c)
41o
d)
33o
20.

You are on a ship at sea. You see a lighthouse in the distance. You know the lighthouse is 175 feet tall. You measure the angle of elevation to the top of the lighthouse at 5o. How far are you from the bottom of the lighthouse?

a)

2000.3 feet

b)

2007.3 feet

c)

1997.9 feet

d)

2134.8 feet