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All questions of Understanding Elementary Shapes for Class 6 Exam
How many centimetres make 3m?- a)100
- b)30
- c)300
- d)3000
Correct answer is option 'C'. Can you explain this answer?
How many centimetres make 3m?
a)
100
b)
30
c)
300
d)
3000
|
Anjali Yadav answered |
1m =100 cm 3m =3×100 cm =300cm
In ∠PRQ, which of the following are the two arms?- a)
- b)
- c)
- d)
Correct answer is option 'A'. Can you explain this answer?
In ∠PRQ, which of the following are the two arms?
a)
b)
c)
d)
|
Lavanya Menon answered |
⇒ In ∠PRQ, Q is a vertex of an angle.
⇒ RP and RQ are two rays of an angle.
⇒ So, RP and RQ are two arms of ∠PRQ.
What are the lines which lie on the same plane and do not intersect at any point?- a)Perpendicular
- b)Intersecting
- c)Parallel
- d)Collinear
Correct answer is option 'C'. Can you explain this answer?
What are the lines which lie on the same plane and do not intersect at any point?
a)
Perpendicular
b)
Intersecting
c)
Parallel
d)
Collinear
|
|
Mansi Yadav answered |
In geometry, parallel linesare lines in a plane whichdo not meet.
How many metres is 805 cm?
- a)80.5 m
- b)8.5 m
- c)8.50 m
- d)8.05 m
Correct answer is option 'D'. Can you explain this answer?
How many metres is 805 cm?
a)
80.5 m
b)
8.5 m
c)
8.50 m
d)
8.05 m
|
|
Anjali Yadav answered |
100cm = 1m
1cm = (1/100)m
805cm in m = (805/100)m
Formula used: Divide the length value by 100
Correct option is D. 8.05 m
Correct option is D. 8.05 m
When an arm of an angle is extended then how does its measure change?- a)Doubled
- b)Tripled
- c)Remains the same
- d)Halved
Correct answer is option 'C'. Can you explain this answer?
When an arm of an angle is extended then how does its measure change?
a)
Doubled
b)
Tripled
c)
Remains the same
d)
Halved
|
|
Meena Yadav answered |
When an arm of an angle is extended then the measure of an angle (1) Doubles.
If the string shown in the figure is pulled straight, then which one of the following will be the closest approximation of its length? 
- a)7cm
- b)8cm
- c)9 cm
- d)6 cm
Correct answer is option 'B'. Can you explain this answer?
If the string shown in the figure is pulled straight, then which one of the following will be the closest approximation of its length?
a)
7cm
b)
8cm
c)
9 cm
d)
6 cm
|
Vandana Nair answered |
(4.5 - 2.5)+(4.5 - 3.0)+(7.5 - 3.5)
=2+1.5+ 4
= 7.5 cm = 8 cm (approx.)
=2+1.5+ 4
= 7.5 cm = 8 cm (approx.)
By what measure is the line m longer than the line n?
- a)1 cm
- b)2 cm
- c)3 cm
- d)4 cm
Correct answer is option 'D'. Can you explain this answer?
By what measure is the line m longer than the line n?
a)
1 cm
b)
2 cm
c)
3 cm
d)
4 cm
|
Ashwani Mishra answered |
Length of line A = 9 cm
Length of line B = 7−2 = 5 cm
Length of line A − length of line B = 9 − 5 = 4 cm
Hence, line A is 4 cm longer than line B.
179∘ is an example of which of these angles?- a)An obtuse angle
- b)An acute angle
- c)A right angle
- d)A straight angle
Correct answer is option 'A'. Can you explain this answer?
179∘ is an example of which of these angles?
a)
An obtuse angle
b)
An acute angle
c)
A right angle
d)
A straight angle
|
Aashna Ahuja answered |
179∘ 90∘, 179∘ 180∘ So it is obtuse.
An angle which measures 0∘ is called a/an ___ angle.- a)zero
- b)straight
- c)obtuse
- d)right
Correct answer is option 'A'. Can you explain this answer?
An angle which measures 0∘ is called a/an ___ angle.
a)
zero
b)
straight
c)
obtuse
d)
right
|
Rajat Chatterjee answered |
Angle Measurement
An angle is formed when two lines or line segments meet at a common point. The measurement of an angle is based on the amount of rotation between the two lines, which is usually expressed in degrees.
Types of Angles
There are several types of angles based on their measurements. Let's briefly discuss them before addressing the specific question.
1. Zero Angle: An angle that measures 0 degrees is called a zero angle.
2. Acute Angle: An angle that measures less than 90 degrees is called an acute angle.
3. Right Angle: An angle that measures exactly 90 degrees is called a right angle.
4. Obtuse Angle: An angle that measures more than 90 degrees but less than 180 degrees is called an obtuse angle.
5. Straight Angle: An angle that measures exactly 180 degrees is called a straight angle.
6. Reflex Angle: An angle that measures more than 180 degrees but less than 360 degrees is called a reflex angle.
The Zero Angle
A zero angle is a unique type of angle that measures 0 degrees. It can be visualized as two lines or line segments overlapping each other. Since there is no rotation or inclination between the lines, the angle formed is considered to be zero.
Why is the Answer 'A' - Zero Angle?
In the given question, it is stated that an angle measures 0. Based on the types of angles mentioned above, we can conclude that an angle measuring zero degrees is referred to as a zero angle. This means that the correct answer to the question is option 'A'.
It is crucial for students to understand the different types of angles and their measurements to solve geometry problems accurately. The concept of angles is extensively used in various mathematical and real-world applications, such as measuring distances, calculating areas, and determining shapes.
An angle is formed when two lines or line segments meet at a common point. The measurement of an angle is based on the amount of rotation between the two lines, which is usually expressed in degrees.
Types of Angles
There are several types of angles based on their measurements. Let's briefly discuss them before addressing the specific question.
1. Zero Angle: An angle that measures 0 degrees is called a zero angle.
2. Acute Angle: An angle that measures less than 90 degrees is called an acute angle.
3. Right Angle: An angle that measures exactly 90 degrees is called a right angle.
4. Obtuse Angle: An angle that measures more than 90 degrees but less than 180 degrees is called an obtuse angle.
5. Straight Angle: An angle that measures exactly 180 degrees is called a straight angle.
6. Reflex Angle: An angle that measures more than 180 degrees but less than 360 degrees is called a reflex angle.
The Zero Angle
A zero angle is a unique type of angle that measures 0 degrees. It can be visualized as two lines or line segments overlapping each other. Since there is no rotation or inclination between the lines, the angle formed is considered to be zero.
Why is the Answer 'A' - Zero Angle?
In the given question, it is stated that an angle measures 0. Based on the types of angles mentioned above, we can conclude that an angle measuring zero degrees is referred to as a zero angle. This means that the correct answer to the question is option 'A'.
It is crucial for students to understand the different types of angles and their measurements to solve geometry problems accurately. The concept of angles is extensively used in various mathematical and real-world applications, such as measuring distances, calculating areas, and determining shapes.
How is the measure of an angle expressed?- a)Compasses
- b)Protractor
- c)Degrees
- d)Centimetres
Correct answer is option 'C'. Can you explain this answer?
How is the measure of an angle expressed?
a)
Compasses
b)
Protractor
c)
Degrees
d)
Centimetres
|
Shiksha Academy answered |
The measure of an angle is expressed in degrees. A protractor is used to measure the angle, and the unit for measuring angles is degrees (°).
What type of an angle is ∠AOB? 
- a)An obtuse angle
- b)A right angle
- c)An acute tangle
- d)A straight angle
Correct answer is option 'A'. Can you explain this answer?
What type of an angle is ∠AOB?
a)
An obtuse angle
b)
A right angle
c)
An acute tangle
d)
A straight angle
|
Shyla Jose answered |
An angle is a shape formed when two rays meet at a single point. Angles are measured in degrees (°), or radians, and are represented by the symbol "∠".
Here are some types of angles:
Acute angle
An angle that measures less than 90°. For example, a 30° or 65° angle is acute.
Right angle
An angle that measures exactly 90°. It's formed when two lines or rays intersect perpendicularly. A square has four right angles.
Straight angleAn angle that measures 180° is called straight angle.
So, the angle AOB is greater than 90°and less than 180° it's called
obtuse angle
l and m are two lines perpendicular to each other. What is the measure of the angle between them? - a)10∘
- b)50∘
- c)40∘
- d)90∘
Correct answer is option 'D'. Can you explain this answer?
l and m are two lines perpendicular to each other. What is the measure of the angle between them?
a)
10∘
b)
50∘
c)
40∘
d)
90∘
|
Devika Nair answered |
The angle between perpendicular lines is 90°.
Which is the longest rectangle ?- a)
- b)
- c)
- d)
Correct answer is option 'B'. Can you explain this answer?
Which is the longest rectangle ?
a)
b)
c)
d)
|
|
Devika Nair answered |
By observing & comparing the given figures, rectangle B is the longest rectangle.
In ∠RST, what is the vertex ?- a)R
- b)T
- c)S
- d)
Correct answer is option 'C'. Can you explain this answer?
In ∠RST, what is the vertex ?
a)
R
b)
T
c)
S
d)
|
|
Avantika Raj answered |
When we denote the angle, we always put the vertex in the middle
Chapter doubts & questions for Understanding Elementary Shapes - Maths Olympiad Class 6 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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