MCQ Questions for Class 6 Maths Understanding Elementary Shapes Quiz 10

Pyramid is an example of:

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

Which of the following closed plane figures is/are not polygon(s)?

The number of lines of symmetry in a scalene triangle is

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0
0%
1
0%
2
0%
3

What is the other name for rectangle with four equal sides?

0%
Rectangle
0%
Parallelogram
0%
Square
0%
Triangle

Explanation

A rectangle is made up of

$4$ sides.

When its four sides become equal, it is known as a square.

Hence, the answer is square.

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

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Smaller than
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Larger than
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Equal to
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One-half of

Which of the following is an obtuse angle ?

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

The four sides of a _______ are equal.

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square
0%
rectangle
0%
triangle
0%
none

A four sided figure with all sides equal and opposite angles also equal.

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kite
0%
Rhombus
0%
Parallelogram
0%
Rectangle

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.

A square can be a .......................

0%
triangle
0%
heptagon
0%
quadrilateral
0%
hexagon

Explanation

$\textbf{Step -1: Find the correct option.}$

$\text{A square has four sides.}$

$\Rightarrow \text{It is a quadrilateral.}$

$\textbf{Hence, the correct option is C.}$

The sum of two acute angles can be:

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Acute angles
0%
Obtuse angles
0%
Right angles
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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

$(D)$

A Rhombus is also a

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Parallelogram
0%
Trapezium
0%
rectangle
0%
None of these

All squares are

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rectangles
0%
rhombus
0%
parallelograms
0%
All of these

Explanation

(

$1$ ) Opposite sides are equal and angles are right angles so sqaure is a rectangle.
(

$2$ ) Diagonals bisect each other so square is a rhombus
(

$3$ ) Opposite sides are parallel so square is a parallelogram.
Correct answer is option (D).

Identify the solid with a square base and

$4$ triangle-shaped sides.

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Figure 2
0%
Figure 1
0%
Figure 3
0%
Figure 4

Explanation

Figure 1 has a square base and

$4$ triangle-shaped sides.
Figure 2 is a cube that has no triangular-shaped sides.
Figure 3 is a triangular prism that has only 2 triangular sides.
Figure 4 is a triangular pyramid that has no square base.

Identify the Quadrilateral.

0%
parallelogram
0%
rectangle
0%
square
0%
trapezium

Identify the name of the triangle.

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acute isosceles triangle
0%
acute scalene triangle
0%
acute obtuse triangle
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acute right-angled triangle

Explanation

We can see that, in the given triangle, the two angles are equal and all angles are less than

$90^{o}$ .

Hence, the given triangle is an acute isosceles triangle.

Which of these three-dimensional figures do not have polygonal faces?

0%
Figure 2
0%
Figure 1
0%
Figure 3
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Figure 1 and 3

Which one of the following is not an acute triangle?

Explanation

Acute triangle has all angles less than

$90^o$ .
So, the second figure is not an acute triangle.

How many faces does the given solid have?

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$6$
0%
$4$
0%
$8$
0%
$12$

Explanation

The given figure is a cube with two triangles sliced on its two edges. A cube has

$6$ faces and there are two triangular faces. So, there are total

$8$ faces.

Which figure is a regular hexagon?

0%
figure 2
0%
figure 4
0%
figure 3
0%
figure 1

After observing the given figure, can you say B is equidistant from A and C?

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Yes
0%
No
0%
Can't say anything
0%
None of these

Identify the solid :(matchbox)

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Cube
0%
Sphere
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Cone
0%
Cuboid

Define a right angle.

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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.

What type of angle is angle X?

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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

All squares are not parallelograms.

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True
0%
False

Explanation

$\Rightarrow$ A parallelogram is a quadrilateral with opposite sides parallel and sum of its adjacent sides are supplementary.

$\Rightarrow$ In square opposite sides are parallel and measure of each angle is

$90^o$ , so sum of its adjacent also supplementary.

$\Rightarrow$ So, square contains all the properties of a parallelogram.

$\therefore$ All squares are parallelogram.

So, given statement is false.

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 ________.

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Right
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Obtuse
0%
Acute
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Straight

Which of the following is an obtuse angle?

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

CBSE Questions for Class 6 Maths Understanding Elementary Shapes Quiz 10 - MCQExams.com

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Practice Class 6 Maths Quiz Questions and Answers

CBSE Questions for Class 6 Maths Understanding Elementary Shapes Quiz 10 - MCQExams.com

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Practice Class 6 Maths Quiz Questions and Answers

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