MCQ Questions for Class 6 Maths Understanding Elementary Shapes Quiz 8

The central angle of a part of a circle which is divided into

$6$ equal parts is:

0%
$60^\circ$
0%
$30^\circ$
0%
$45^\circ$
0%
$90^\circ$

Explanation

Central angle

$=360^{\circ}$

Now park is divided in four equal parts.

Let measure of central angle

$=x^o$

$\\ x+x+x+x+x+x={ 360 }^{ \circ }\\ 6x={ 360 }^{ \circ }\\ x=\dfrac { { 360 }^{ \circ } }{ 6 } \\ \Rightarrow x={ 60 }^{ \circ }$

So option

$A$ is correct.

Danish drew an angle as shown here. Manish drew an angle that was twice the measure of Danish's angle. What was the measure of Manish's angle?

0%
$20^o$
0%
$70^o$
0%
$80^o$
0%
$60^o$

Explanation

Measure of angle drawn by Danish

$=40^o$

$\therefore$ Measure of angle drawn by Danish

$=2\times 40^o=80^o$ .

There are six angles, How many of them are greater than a right angle?

0%
$1$
0%
$2$
0%
$3$
0%
$4$

Explanation

Figure

$A$ , Figure

$B$ and Figure

$C$ are the angles which are greater thaan right angle.

Hence the correct answer is option C

Which type of angle best describes angle Q?

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

Explanation

Measure of angle

$Q$ is more thaan

$90^o$ but less than

$180^o$ .

Hence the

$\angle Q$ is an obtuse angle.

Which of the following has no lines of symmetry ?

0%
A scalene triangle
0%
An isosceles triangle
0%
An equilateral triangle
0%
All of these

Explanation

$\Rightarrow$ An equilateral triangle has three lines of symmetry.

$\Rightarrow$ An Isosceles triangle has one line of symmetry.

$\Rightarrow$ A scalene triangle does not have any line of symmetry.

$\therefore$ Correct answer is option

$A$ .

The clock shows the time in the morning. Then, angle represents _________ angle.

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

Explanation

Any angle which is larger than

$180^o$ but smaller than

$360^o$ is called as a reflex angle.

Here, the angle shown is larger than

$180^o$ but smaller than

$360^o$ .

Hence, it is a reflex angle.

Therefore, option

$C$ is correct.

An angle which measures more than

$90^o$ but less than

$180^o$ is called ___________.

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

Explanation

An angle which measures more than

$90^o$ but less than

$180^o$ is called as an obtuse angle.

Which of the following is greater than a right angle?

Explanation

Option

$A$ - Angle shown is a right angle

Option

$B$ -Angle shown is a acute angle

Option

$C$ -Angle shown is a acute angle

Option

$D$ -Angle shown is an obtuse angle.
Hence option

$D$ is the correct answer

What is the approximate measure of this angle in degrees?

0%
$20^o$
0%
$45^o$
0%
$110^o$
0%
$135^o$

Explanation

The given angle is a acute angle, so option D and option C is not correct

The approximate value of above angle is

$45^o$ , as the angle of

$20^o$ would be very small than the given angle

Hence the correct answer is option B.

A geometrical figure with eight sides is called

0%
polygon
0%
hexagon
0%
octagon
0%
pentagon

Which three dimensional figure has

$5$ faces,

$8$ edges and

$5$ vertices?

Explanation

A) Rectangular Pyramid-It has

$5$ faces,

$8$ edges and

$5$ vertices.

B) Cube- it has

$6$ faces,

$12$ edges and

$8$ vertices.

C)Cuboid-It has

$6$ faces,

$12$ edges and

$8$ vertices.

D) Cylinder-It has

$3$ faces,

$2$ edges and no vertices.

Answer : A

Which of these is NOT a 3-dimensional shape?

0%
Sphere
0%
Cuboid
0%
Cube
0%
Circle

Explanation

Sphere, Cuboid and Cube are

$3$ -D shapes as they are associated with third dimension which is height.

Now, Circle is

$2$ -D shape as it can has only two dimensions.

$p :$ The corners of a solid shape are called its edges.

$q :$ The line segments of a solid shape are called its vertices.
Which of the following options hold?

0%
Both $p$ and $q$ are true
0%
$p$ is true and $q$ is false
0%
Both $p$ and $q$ are false
0%
$p$ is false and $q$ is true

Explanation

Edges are the line segments which make the sides of a solid shape, whereas, vertex is the corner of a solid shape, the point where edges meet.

Hence, both

$p$ and

$q$ are false.

If each pair of opposite sides of a quadrilateral are equal and parallel, then it is a ____________.

0%
Kite
0%
Trapezium
0%
Parallelogram
0%
None of these

If you place a ladder against a wall at an angle, what type of a triangle will you get?

0%
Equilateral triangle
0%
Right angle triangle
0%
Isosceles triangle
0%
Scalene triangle

Explanation

Here

$AO$ is wall and

$AB$ is ladder.

Hence,irrespective of what

$\theta$ is,

$\angle AOB$ will always be

${ 90 }^{ \circ }$ .

$\therefore$ Triangle will always be right-angled.

1005667_1064521_ans_c3e5f8421f484fd3b876f9523708384e.png

Which of the following are angles of Obtuse angled triangle?

0%
$30^{o},90^{o},60^{o}$
0%
$30^{o},70^{o},80^{o}$
0%
$120^{o},20^{o},40^{o}$
0%
$90^{o},45^{o},45^{o}$

Explanation

Ans- From given angles obtuse angled triangle pair is

$120^{\circ},20^{\circ},40^{\circ}$

obtuse angle:- Angle greater than

$90^{\circ}$ but smaller than

$180^{\circ}$

1208244_1361492_ans_a5454446c38c4e91a971171d355a9ada.JPG

Say True or False.
The measure of an obtuse angle

$< 90^{\circ}$ .

0%
True
0%
False

Explanation

False

The measure of an obtuse angle is greater than

$90^o$ but less than

$180^o$ .

An angle whose measure is less than that of a right angle is ______.

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

Explanation

$Acute \ angle$ has measure less than

$right \ angle$

Hence correct answer is

$A) \ Acute$

An angle whose measure is greater than that of a right angle is ______.

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

Explanation

$Obtuse \ angle$ has measure more than that of

$right \ angle \ but \ less \ than \ 180\ degree$

Hence correct answer is

$B) \ Obtuse$

State True or False:
The measure of a reflex angle is

$> 180^{\circ}$ .

0%
True
0%
False

Explanation

Step 1: True

According to definition, reflex angle is the angle which are greater than

$180^o$ but less than

$360^o$ . Therefore, the given statement is true.

An angle whose measure is the sum of the measures of two right angles is _______.

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

Explanation

Step 1: Straight angle

We know that the measure of a right angle is

$90^ \circ$ and the measure of a straight angle is

$180^ \circ.$

Therefore, sum of the measure of two right angles is

$(90+90)^ \circ=180^ \circ.$

Thus an angle whose measure is the sum of two right angles is

$\text{Straight}.$

Which of the following statements are true (T) and which are false (F) :
A triangle can have at most one obtuse angles.

0%
True
0%
False

Choose the correct option.

$60^{\circ}$ is

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

Choose the correct option.

$20^{\circ}$ is

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

State true or false:
Every simple closed curve is a polygon.

0%
True
0%
False

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.

State true or false:
Every polygon has atleast three sides.

0%
True
0%
False

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

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

CBSE Questions for Class 6 Maths Understanding Elementary Shapes Quiz 8 - MCQExams.com

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Practice Class 6 Maths Quiz Questions and Answers

CBSE Questions for Class 6 Maths Understanding Elementary Shapes Quiz 8 - MCQExams.com

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Practice Class 6 Maths Quiz Questions and Answers

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