MCQ Questions for Class 5 Maths Shapes And Angles Quiz 3

Choose the correct option.

$20^{\circ}$ is

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

Choose the correct option.

$60^{\circ}$ is

0%
Acute angle
0%
Obtuse angle
0%
Reflex angle
0%
none of these

Choose the correct option:-

$200^{\circ}$ is ________.

0%
Acute $\angle$
0%
Obtuse $\angle$
0%
Reflex $\angle$
0%
none of these

Explanation

The given measure of angle is

$200^o.$

We know, reflex angles are angles measuring greater than

$180^o$ and less than

$360^o.$

$\therefore$

$200^o$ is a reflex angle.

Hence, option

$C$ is correct.

The measure of an acute angle is always

$< 90^{o}$ .

0%
True
0%
False

Explanation

Acute angles are the angles whose measurements fall between

$0$ and

$90$ degrees.

$\therefore$ The above statement is true.

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

If the sum of two angles is greater than

$180^{\circ}$ , then which of the following is not possible

0%
two obtuse angles
0%
two right angles
0%
one obtuse and one acute angle
0%
one reflex and one acute angle

Explanation

$(B)$ Two right angles, as the sum will be

$180^\circ$ only.

Open any two adjacent fingers of your hand. What kind of angle you get

0%
acute
0%
right
0%
obtuse
0%
straight

Two acute angles are congruent.

0%
True
0%
False

Explanation

False

Two acute angles may vary from

$0^{\mathring{}}$ to

$89^{\mathring{}}$ . Hence, acute angles having different measures are not congruent.

State whether the following statement are true or false :
'An angle Whose measure is greater than that of right angle is obtuse'.

0%
True
0%
False

If the sum of two angles is equal to an obtuse angle, then which of the following is not possible?

0%
One obtuse angle and one acute angle
0%
One right angle and one acute angle
0%
Two acute angles
0%
Two right angles

Explanation

Option [D] is the correct answer.

The sum of two right angles is exactly equal to

${180}^{o}$ , which is a straight angle not an obtuse angle.

If the sum of two angles is an obtuse angle, then which of the following is not possible :

0%
two acute angles
0%
one obtuse angles one acute angle
0%
two acute angles
0%
two right angles

Define a right angle.

0%
A right angle is an internal angle which is equal to $90^o$ .
0%
An angle as in a corner of a square, or formed by dividing a circle into quarters.
0%
The sum of two acute angles is a right angle.
0%
None of these

Explanation

Measure of right triangle is

$90^{\circ}$

So option

$A$ is correct.

Also the angle formed at the corner of square and centre of quarter circle is

$90^{\circ}$

So option

$B$ is also correct.

Sum of two acute angles is not always right angle.

$C$ is not correct.

In given figure which one of the following angle is a straight angle

0%
$\angle AOB$
0%
$\angle AOD$
0%
$\angle BOC$
0%
$\angle BOD$

Explanation

Straight angle is equal to

$180^o$ .

So,

$\angle BOD$ and

$\angle AOC$ are straight angles.

The angle formed by the pages of an open book is:

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

Explanation

The angle formed by the pages of an open book is obtuse.

Since the angle will always be more than

$90$ but less than

$180$ .

A reflex angle is .........a straight angle.

0%
Smaller than
0%
Larger than
0%
Equal to
0%
One-half of

Line

$\text{AD}$ and the point

$\text{R}$ lie in the same plane.

0%
True
0%
Flase
0%
Data is insufficient
0%
None of the above

Which of the following is an obtuse angle ?

0%
$92^\circ$
0%
$181^\circ$
0%
$195^\circ$
0%
$83^\circ$

The sum of two acute angles can be:

0%
Acute angles
0%
Obtuse angles
0%
Right angles
0%
All of the above

Explanation

Let one angle is

$\displaystyle { 30 }^{ o }$ and the other angle is

$\displaystyle { 40 }^{ o }$ then sum is

$\displaystyle { 70 }^{ o }$ . which is an acute angle.
Let one angle is

$\displaystyle { 70 }^{ o }$ and other angle is

$\displaystyle { 80 }^{ o }$ , then sum is

$\displaystyle { 150 }^{ o }$ which is a obtuse angle.
Let one angle is

$\displaystyle { 45 }^{ o }$ and another angle is

$\displaystyle { 45 }^{ o }$ then sum is

$\displaystyle { 90 }^{ o }$ which is a right angle.

So correct answer is

$(D)$

When the clock shows time

$5:20$ , the angle formed between the two hands is

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

Explanation

Angles

between

${0}^{o}$ and

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

Since at the time

$5:20$ , the hands of the clock form an angle less than

${90}^{o}$ , the angle formed between the two hands is an acute angle.

What type of angle is angle X?

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

How many angles are less than

$90^o$ inside the given figures?

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

Explanation

Given,

Refer Fig.

Here

$\angle ABF,\angle BFC$ and

$\angle FCD$ is less than

$90^0$ .

So total

$3$ angles are

$<90^0$

option B is correct.

2108039_722812_ans_20257a4d6e2f49c7a80b1b902420136f.png

Write 'True' or 'False'.
A straight angle measures

$90^o$

0%
True
0%
False

Explanation

Given

$\rightarrow$ A straight angle measures

$90^{\circ}$

To find

$\rightarrow$ Whether the given statement is true or false.

A straight angle measures

$180^{\circ}$ . In radian it is measured as

$\pi$ angle.

Therefore, the given statement is false.

Correct option is B.

2107935_700752_ans_a93bd2276c144de19eb02edf30729a5b.png

How many right angles are there on the outside of the figure shown?

0%
$2$
0%
$4$
0%
$6$
0%
$8$

Explanation

Given:

Refer image,

Three are total

$8$ .

Right angles on the outside of the figures.

$\therefore$ Option D.

$8$ is correct

2108037_722823_ans_9a6f5a84a5444eada88d4a8f9c46bcbb.png

The angle between two opposite rays is ________.

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

Which of the following is an obtuse angle?

0%
$92^{\circ}$
0%
$181^{\circ}$
0%
$195^{\circ}$
0%
$83^{\circ}$

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

Explanation

As evident from the picture, it can be seen that the angle is less than

$90^0$ or right angle.
2043296_1552452_ans_0d467de4c5864591834e96d0b9150f6b.PNG

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

Mark the correct alternative of the following.
An angle of measure

$140^o$ is?

0%
An acute angle
0%
An obtuse angle
0%
A straight angle
0%
A complete angle

Explanation

An angle that measures

$<180^o$ but

$>90^o$ is called an obtuse angle.

Here it is given

$140^o$ , so it is an obtuse angle.

CBSE Questions for Class 5 Maths Shapes And Angles Quiz 3 - MCQExams.com

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Practice Class 5 Maths Quiz Questions and Answers

CBSE Questions for Class 5 Maths Shapes And Angles Quiz 3 - MCQExams.com

0:0:1

Practice Class 5 Maths Quiz Questions and Answers

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