Rotational Symmetry

Q.

Find the order of rotational symmetry in the given image.

1. 6

2. 10

3. 8

4. 0

Q. Find the order the rotational symmetry for the given figure.

Q.

The order of rotational symmetry in the figure is given below.

1. $4$

2. $2$

3. $1$

4. Infinitely many

Q.

Which of the following have both line symmetry and rotational symmetry?

1. Square
2. Regular pentagon
3. Rectangle
4. Isosceles triangle

1. 1 and 2

2. 1, 2 and 3

3. 1

4. 1, 2 and 4

Q.

Letters H, O and Z have both line symmetry and rotational symmetry. Say true or false.

1. True

2. False

Q. Draw neat diagrams solving the line (or lines) of symmetry and give the specific name to the quadrilateral having, only one line of symmetry.

Q. Six colors of paint are available. Each face of a cube is to be painted a different color. In how many different ways can this be done if two colorings are considered the same when one can be obtained from the other by rotating the cube?

1. $5$
2. $6$
3. $30$
4. $6!$

Q.

If the angle of rotation of an object is $72°$, find the order of rotational symmetry of that object.

Q. Which of the following geometrical shape has only line symmetry not rotational symmetry?

1. Parallelogram
2. Pentagon
3. Square
4. Kite

Q. If a fan has 3 blades, then its angle of rotation in degrees is _____.​

1. 90
2. 120
3. 60
4. 150

Q. Find the order the rotational symmetry for the given figure.

Q.

A square has rotational symmetry of order _______.

Q. Find the number of lines of symmetry of a circle.

1. 4
2. 0
3. 2
4. Infinite

Q. The order of rotational symmetry for the given figure is --

1. 6
2. 2
3. 3
4. 4

Q. If ${}^{\prime }{n}^{\prime }$ is the number of repeating features, ${}^{\prime }{a}^{\prime }$ is the number of lines of symmetry and ${}^{\prime }{b}^{\prime }$ is the order of rotational symmetry for the below shown figure, then choose the correct statement(s).

1. The relation $a=b=n$ does not hold good for this figure.
2. $a=b=n$, this relation holds good for this figure. As this is a regular polygon.
3. $a\ne b=n=6$
4. $a\ne b,\text{but}b=n$

Q. The order of rotational symmetry of a parallelogram about its centre is:

1. $2$
2. $3$
3. $4$
4. $1$

Q.

A figure with angle of rotation as ${17}^{\circ }$ has rotational symmetry of order more than 1.

1. False

2. True

Q. Which of the following alphabets has more than 1 line of symmetry ?

1. A
2. O
3. Q
4. B

Q.

Order of rotational symmetry for a scalene triangle is ____.

___

Q.

Which of the following figures exhibit rotational symmetry?

1. A

2. B

3. C

4. D

Q. Find the number of lines of symmetry of a circle.

1. 2
2. 0
3. Infinite
4. 4

Q.

If an object has rotational symmetry of order $5$, what will be its angle of rotation?

Q. Arrange the following in ascending order:
${\log }_{3}108,{\log }_{4}192,{\log }_{5}500,{\log }_{6}1080$

1. ${\log }_{4}192>{\log }_{5}500<{\log }_{6}1080<{\log }_{3}108$
2. ${\log }_{4}192<{\log }_{5}500>{\log }_{6}1080<{\log }_{3}108$
3. None of these
4. ${\log }_{3}108<{\log }_{4}192<{\log }_{5}500<{\log }_{6}1080$
   

Q.

If a fan has 3 blades, then its degree of rotation is _____.

1. ${90}^{\circ }$

2. ${120}^{\circ }$

3. ${150}^{\circ }$

4. ${180}^{\circ }$

Q. How many lines of symmetry are there in a circle?

1. Six
2. Five
3. Seven
4. Infinite