MCQ Questions for Class 5 Maths Shapes And Angles Quiz 1

Look at the angle in the picture and choose the correct option

0%
Right angle
0%
Less than Right angle
0%
More than Right angle
0%
None of these

Look at the angle in the picture and choose the correct option

0%
Right Angle
0%
Less than Right angle
0%
More than right angle
0%
None of these

Look at the angle in the picture and choose the correct option

0%
Right angle
0%
Less than Right angle
0%
More than Right angle
0%
None of these

Look at the angle in the picture and choose the correct option

0%
Right angle
0%
Less than Right angle
0%
More than Right angle
0%
None of these

Name the angle formed at each corner of an envelope.

0%
Acute angle
0%
Obtuse angle
0%
Right angle
0%
Straight angle

Explanation

The envelope is nothing but rectangular in shape

$\therefore$ Each corner angle of Envelope is

$90^o$ i.e. right angle.

Fill in the blanks with the correct word from the options given.

Vertical angles are .......... right angles.

0%
Always
0%
Never
0%
Sometimes
0%
Data Insufficient

Explanation

Vertical angles can be sometime right angle as shown in the figure.

So option

$C$ is correct.

$4:15$ , the angle formed between the two hands of a clock is:

0%
acute
0%
obtuse
0%
right angle
0%
none of these

Explanation

$4:15$ , the hour will be between

$4$ and

$5$ .

And minute hand will be on

$3$ .

Thus, the angle formed between these two hands will be less than

$90^{o}$ .

Hence, they form a acute angle.

$\displaystyle \angle AOB$ is a / an _____________ angle.

0%
acute
0%
right
0%
obtuse
0%
none of these

Explanation

An obtuse angle is one which measures more than

$90^o$ but less than

$180^o$ .

$\angle ABC$ in the following figure is a / an:

0%
acute angle
0%
obtuse angle
0%
reflex angle
0%
straight angle

Explanation

Angles larger than a straight angle but less than complete angle (i.e. between

$180^o$ and

$360^o$ ) are called reflex angles.

Here, the given

$\angle ABC$ measures greater than

$180^o$ but less than

$360^o$ .

Hence, the given angle is a reflex angle.

Therefore, option

$C$ is correct.

What is the angle formed between the two hands of a clock at the time

$3:00?$

0%
Right
0%
Acute
0%
Obtuse
0%
Left

Explanation

First, note that a clock is a circle made of

$360$ degrees and that each number represents an angle and the separation between them is

$360/12 = 30$ . And at

$3:00,$ the minute hand is on the

$12$ and the hour hand is on the

$3.$

The correct answer is

$3 * 30 = 90$ degrees.

$3$ o' clock the angle formed between the two hands of a clock is

$right \ angled$ .

Hence the correct answer is option

$A$ .

In Fig, POQ is a line. The value of x is:

0%
$20^0$
0%
$25^0$
0%
$30^0$
0%
$35^0$

Explanation

Sum of the angles forming a linear pair is

$180^\circ$

Here angles measuring

$40^\circ, 4x$ and

$3x$ form a linear pair.

So,

$40^\circ+4x+3x=180^\circ$

$7x+40^\circ=180^\circ$

$x=20^\circ$

$\displaystyle 179^{\circ}$ is an example of

0%
obtuse angle.
0%
acute angle.
0%
right angle.
0%
None of the above

Explanation

An obtuse angle is an angle which is more than

$90^o$ but less than

$180^o$ .
Hence

$\displaystyle 179^{\circ}$ is an example of obtuse.

Hence $Op-A$ is correct.

$\displaystyle 89^{\circ}$ is an example of :

0%
obtuse
0%
acute
0%
right
0%
None of the above

Explanation

Angles between

${0}^{o}$ and

${90}^{o}$ are acute angles. Hence,

${89}^{o}$ is an acute angle.

Number of right angles formed in the given figure is:

0%
$5$
0%
$3$
0%
$2$
0%
$4$

Explanation

There are four right angles in the figure which are

$\angle PSR, \angle SRQ , \angle RQP , \angle QPS$

Given : AB || CD.

$\angle\, 2$ is an acute angle, then

$\angle\, 1$ is

0%
Acute
0%
Right
0%
Obtuse
0%
Straight

Explanation

$\angle 1$ and

$\angle 2$ are supplementary angles .

$\Rightarrow \angle 1+\angle 2={ 180 }^{ \circ }$

Now

$\angle 2$ is given acute

$\Rightarrow \angle 2<{ 90 }^{ \circ }$

$\Rightarrow \angle 1>{ 90 }^{ \circ }$

So it is an obtuse angle.

Straight angle is ________

0%
$\displaystyle 90^{\circ}$
0%
$\displaystyle 180^{\circ}$
0%
$\displaystyle 60^{\circ}$
0%
$\displaystyle 45^{\circ}$

Explanation

A straight angle

$= {180}^{o}$

An angle which measures

$\displaystyle 90^{\circ}$ is called

0%
Obtuse angle
0%
Acute angle
0%
Right angle
0%
None of these

Explanation

An angle which measures

${90}^{o}$ is called a right angle.

Based on the angle measures given, which triangle is not acute?

0%
$35^\circ,\, 69^\circ,\, 76^\circ$
0%
$60^\circ,\, 60^\circ,\, 60^\circ$
0%
$88^\circ,\, 46^\circ,\, 46^\circ$
0%
$90^\circ,\, 45^\circ,\, 45^\circ$

Explanation

For acute angles triangle all the three angles must be less than

${ 90 }^{ \circ }$ .

In option

$D$ one of the angle is

${ 90 }^{ \circ }$ , so it is not acute angles triangle.

Number of right angles formed in the given figure is:

0%
$5$
0%
$3$
0%
$2$
0%
$4$

Explanation

There are two right angles in the figure which are

$\angle PSR$ and

$\angle QRS$ .

An angle which measures more than

$\displaystyle 0^{\circ}$ and less than

$\displaystyle 90^{\circ}$ is called

0%
obtuse
0%
acute
0%
right
0%
none of these

Explanation

Angles which measure more than

${0}^{o}$ and less than

${90}^{o}$ are acute angles.

$\displaystyle 91^{\circ}$ is an example of

0%
obtuse
0%
acute
0%
right
0%
Reflex

Explanation

An obtuse angle is one which is more than

$90^0$ but less than

$180^0$ .
and hence

$\displaystyle 91^{\circ}$ is an example of obtuse.

Instrument used to measure or construct angles is

0%
Compass
0%
Scale
0%
Protractor
0%
Set Square

Angles are measured in

0%
compasses
0%
protractor
0%
degrees
0%
centimetres

An angle which is more than

$180^{\circ}$ and less than

$360^{\circ}$ is called:

0%
obtuse angle
0%
right angle
0%
reflex angle
0%
complete angle

Explanation

By definition, we know, an angle which is more than

$180^o$ 180∘ and less than

$360^o$ 360∘ is called reflex angle.

That is, an angle larger than a straight angle but less than

$1$ turn (between

$180^o$ and

$360^o$ ) are called reflex angle.

Therefore, option

$C$ is correct.

Which of the following are acute angles?

0%
a and c
0%
a and b
0%
c and d
0%
b and d

Explanation

From the figure it is clearly visible that 'a' and 'b' are acute angles which lies between

$\displaystyle { 0 }^{ o }$ to

$\displaystyle { 90 }^{ o }$ .

An angle that is

$\displaystyle { 1 }^{ o }$ less than right angle is:

0%
Reflex angle
0%
Straight angle
0%
Obtuse angle
0%
Acute angle

Explanation

Right angle measures

$\displaystyle { 90 }^{ o }$

$\displaystyle { 1 }^{ o }$ less of right angle =

$\displaystyle { 90 }^{ o }-{ 1 }^{ o }$

$\displaystyle { 89 }^{ o }$
Which is an acute angle.

Acute angle is the angle which is greater than

$\displaystyle { 0 }^{ o }$ and less than

$\displaystyle { 90 }^{ o }$ .

Obtuse angle is the angle which is greater than

$\displaystyle { 90}^{ o }$ and less than

$\displaystyle {180 }^{ o }$ .

Right angle is the angle which is equal to

$90^o$ .

Reflex angle is the angle which is greater than

$\displaystyle {180}^{ o }$ and less than

$\displaystyle {360 }^{ o }$ .

Sum of right angles is

$\displaystyle { 720 }^{ o }$ . Find no. of right angles.

0%
$8$
0%
$9$
0%
$10$
0%
$7$

Explanation

One right angle =

$\displaystyle { 90 }^{ o }$
Sum of right angle =

$\displaystyle { 720 }^{ o }$
No. of right angles =

$\displaystyle \frac { { 720 }^{ o } }{ { 90 }^{ o } } ={ 8 }$

An angle which measures

$180^{\circ}$ is called_______angle.

0%
zero
0%
right
0%
straight
0%
acute

Explanation

An angle which measures

${180}^{o}$ is called a straight angle.

$\displaystyle 96^{0}$ is an example of-

0%
Acute
0%
Obtuse
0%
Right
0%
None of these

Which of the following is obtuse angle?

0%
Two right angles
0%
One and half right angles
0%
One right angle
0%
Half a right angle

Explanation

Right angle

$=90^{\circ}$

One and half right angle

$=\dfrac { { 90 }^{ \circ } }{ 2 } +{ 90 }^{ \circ }={ 135 }^{ \circ }$

which is greater than

$90^{\circ}$

So it is an obtuse angle .

Option

$B$ is correct.

CBSE Questions for Class 5 Maths Shapes And Angles Quiz 1 - MCQExams.com

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Practice Class 5 Maths Quiz Questions and Answers

CBSE Questions for Class 5 Maths Shapes And Angles Quiz 1 - MCQExams.com

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Practice Class 5 Maths Quiz Questions and Answers

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