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All questions of Symmetry for Class 6 Exam

State the order of rotational symmetry
  • a)
    2
  • b)
    4
  • c)
    1
  • d)
    5
Correct answer is option 'C'. Can you explain this answer?

The shape will look like its original only once after you rotate the shape 360 degrees. Hence, it's rotational symmetry is 1.

Which of th following does not have an order 4 of rotational symmetry?
  • a)
  • b)
  • c)
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?

Avinash Patel answered
Rotational symmetry of order 4 is in (b) and (c) because in these figures, in a complete turn of 4 number of times, the object would be looking exactly the same. However, (a) only has a rotational symmetry of 1.

Which of the following is the line of symmetry of the given figure?
  • a)
    CD
  • b)
    AB
  • c)
    both a and b
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?

Aditi Sharma answered
Line of symmetry is defined as the line that divides the figure into two equal mirror halves.
Here, only CD satisfies the above condition. 

State the order of rotational symmetry
  • a)
    5
  • b)
    2
  • c)
    3
  • d)
    4
Correct answer is option 'D'. Can you explain this answer?

  • Each 90 degrees rotation of the given polygon returns to the original shape.
  • so the polygon has an order of rotational symmetry of 4.

State the order of rotational symmetry
  • a)
    2
  • b)
    1
  • c)
    3
  • d)
    4
Correct answer is option 'B'. Can you explain this answer?

Indu Gupta answered
  • The shape will look like its original only once after you rotate the shape 360 degrees.
  • Hence, it's rotational symmetry is 1.

Which is the correct net for cylinder?
  • a)
  • b)
  • c)
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?

Aditi Sharma answered
A net is a 2-dimensional shape that can be folded to form a 3-dimensional shape or a solid. The solid and the net must have the same number of faces.
Hence, the net for a cylinder is:

Which of the following set of figures show rotation?
  • a)
  • b)
  • c)
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
Rotational symmetry indicates that when an object is observed after some rotation it still looks the same.
Here, (a) satisfies this property.

Which of the following shows reflection symmetry?
  • a)
  • b)
  • c)
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?

Indu Gupta answered
  • Reflection symmetry is a type of symmetry where one-half of the object reflects the other half of the object.
  • Option (a) fulfils this condition.

Choose the correct net for cone?
  • a)
  • b)
  • c)
  • d)
    All of the above
Correct answer is option 'C'. Can you explain this answer?

The net of a cone consists of the following two parts:
  • a circle that gives the base; and
  • a sector that gives the curved surface.

Which of the following dotted lines is a line of symmetry?
  • a)
    L
  • b)
    M
  • c)
    N
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?

Aditi Sharma answered
The line of symmetry divides the figure into two equal mirror halves.
Thus, only dotted line N satisfies the above condition.

Which of the following is a line of symmetry of the figure?
  • a)
    Only N
  • b)
    Both L and O
  • c)
    Both L and N
  • d)
    AII L, M, N and O
Correct answer is option 'D'. Can you explain this answer?

  • A line of symmetry is defined as the line which divides the figure into two equal mirror images
  • Hence from the above figure line L, line M, line N, line O are the lines of symmetry.

State the order of rotational symmetry
  • a)
    1
  • b)
    2
  • c)
    3
  • d)
    4
Correct answer is option 'A'. Can you explain this answer?

Aditi Sharma answered
The shape will look like its original only once after you rotate the shape 360 degrees. Hence, it's order of rotational symmetry is 1.

Which of the squares must be shaded so that the dotted line AB becomes the line of symmetry? 
  • a)
    I
  • b)
    II
  • c)
    III
  • d)
    IV
Correct answer is option 'A'. Can you explain this answer?

Line of symmetry is defined as the line that divides the figure into two equal mirror halves.
Therefore square I must be shaded so that line AB becomes the line of symmetry

Which of the following figure(s) does/do not have a line of symmetry?
  • a)
    P only
  • b)
    Q only 
  • c)
    Both R and S
  • d)
     P and Q
Correct answer is option 'D'. Can you explain this answer?

  • From the above figure we can say that figure P and Q do not have line of symmetry.
  • In option R and S , we can draw a line through the middle hence have a point of symmetry.
  • therefire the correct answer is option D.

Which of the following does not have a reflection symmetry?
  • a)
  • b)
  • c)
  • d)
    none of the above
Correct answer is option 'A'. Can you explain this answer?

Avinash Patel answered
No line can divide the parallelogram in two symmetric shapes. Thus, it does not have a reflection symmetry.

Which square must be shaded so that the figure has a line of symmetry?
  • a)
    P
  • b)
    Q
  • c)
    R
  • d)
    S
Correct answer is option 'B'. Can you explain this answer?

Avinash Patel answered
From the above figure, it can be shown that the square Q should be shaded so that the above figure has a line of symmetry.

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