Mathematics MCQs Chapter 9 - PLS Prep by PakLearningSpot

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Created on January 21, 2022 By Ali Durrani

Math Ch 9 Fundamentals of Trigonometry

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1 / 37

One right angle is equal to

?/2 ??????

90°

1/4 ????????

All of these

2 / 37

Straight line angle is equal to

1/2 ????????

? radian

180°

All of these

3 / 37

One rotation in anti-clock wise direction is equal to:

180°

270°

360°

90°

4 / 37

5 / 37

Two rays with a common starting point form:

Triangle

Angle

Radian

Minute

6 / 37

The common starting point of two rays is called:

Origin

Initial Point

Vertex

All of these

7 / 37

If the rotation of the angle is counter clock wise, then angle is:

Negative

Positive

Non-Negative

None of these

8 / 37

Sexagesimal system is also called

German System

English System

C.G.S System

SI System

9 / 37

1° is equal to

360′′

3600′′

( 1 /360 )′

60′′

10 / 37

0°, 90°, 180°, 270° and 360° are called

Coterminal angle

Quadrantal angl

Allied angle

None of these

11 / 37

An angle is in standard position , if its vertex is

At origin

at ? − ????

??? − ????

in 1st Quad Only

12 / 37

Angles with same initial and terminal sides are called:

Acute angles

Allied Angles

Coterminal angles

Quadrentel angles

13 / 37

3 radian is:

171.888°

120°

300°

270°

14 / 37

1 radian is equal to:

57.296°

5.7296°

175.27°

17.5276

15 / 37

Relation between the length of arc of a circle and the circular measure of it central angle is:

? = ? ?

? = ??

? = ?/ ?

? = 1 /2 ? ^ 2?

16 / 37

The system of angular measurement in which the angle is measured in radian is called:

Sexagesimal System

Circular System

English System

Gradient System

17 / 37

The angle subtended at the center of a circle by an arc whose length is equal to the radius of
the circle is called:

1 Degree

1’

1 Radian

1’’

18 / 37

19 / 37

20 / 37

21 / 37

The system of angular measurement in which the angle is measured in radian is called:

Sexagesimal System

Circular System

English System

Gradient System

22 / 37

The angle subtended at the center of a circle by an arc whose length is equal to the radius of
the circle is called:

1 Degree

1’

1 Radian

1’’

23 / 37

24 / 37

??°??′ equal to

16.5°

32°/2

16.05°

16.2°

25 / 37

Sexagesimal system is also called

German System

English System

C.G.S System

SI System

26 / 37

3600th part of ?° is equal to

1’

1’’

60’’

3600’’

27 / 37

60th part of ?′ is equal to

1’

1’’

60’’

3600’’

28 / 37

60th part of ?° is equal to

One second

One minute

1 Radian

? radian

29 / 37

?° is equal to

360′′

3600′′

(1/360)′

60′′

30 / 37

?° is equal to

30 minutes

60 minutes

1/60 minutes

1/2 minutes

31 / 37

One right angle is equal to

?/2 ??????

90°

1/4 ????????

All of these

32 / 37

Straight line angle is equal to

1/2 ????????

? radian

180°

All of these

33 / 37

One rotation in anti-clock wise direction is equal to:

180°

270°

360°

90°

34 / 37

35 / 37

If the rotation of the angle is counter clock wise, then angle is:

Negative

Positive

Non-Negative

None of these

36 / 37

The common starting point of two rays is called:

Origin

Initial Point

Vertex

All of these

37 / 37

Two rays with a common starting point form:

Triangle

Angle

Radian

Minute

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