Introduction to Symmetry

Q. The line which divides the figure into two equal parts is called the line of symmetry or axis of symmetry.
True or False?

1. True
2. False

Q.

When is a figure said to have a line symmetry?

1. We can fold a picture in half such that the right and left halves match exactly

2. The two halves are mirror images of each other

3. The two halves are not the mirror images of each other

4. None of these

Q. Among the given shapes, which image has no line of symmetry?

1. B
2. All the images have lines of symmetry.
3. A
4. C

Q.

What is the angle of rotation symmetry for a shape that has rotational symmetry of order $5$?

Q.

A figure having no line of symmetry is called an unsymmetrical figure.

1. True

2. False

Q.

Which of the following images is/are symmetric? (The circles represent holes cut out from the figures.)

1. 
2. 
3. 
4. 

Q. Find the number of line(s) of symmetry in a scalene triangle.

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

Q.

Question 29
Fill in the blanks to make the statement true.
In an isosceles right triangle, the number of lines of symmetry is ___

Q.

A line of symmetry is a line where we can fold the image and have both halves match exactly.

1. Spider webs

2. Honeycombs

Q.

Under what additional condition will a right-angled triangle have line of symmetry?

Q. The line dividing the figure or image into two identical parts is called the .

1. straight line
2. line of symmetry
3. parallel line

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

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

Q.

If the angle of rotation of a regular polygon is 30°, ​what will be its order of symmetry?​

1. 6
2. 12
3. 24
4. 3

Q.

All human beings exhibit symmetry.

1. True

2. False

Q. Give the order of rotational symmetry for the following figures.

(a)

(b)

Q.

A figure having no lines of symmetry is called unsymmetrical figure. Say True or False.

1. True

2. False

Q. Tick (✓) the correct answer
A square has

(a) one line of symmetry
(b) two lines of symmetry
(c) three lines of symmetry
(d) four lines of symmetry

Q. In the word "MATHS" which of the following letter shows rotational symmety as well as line symmetry.

1. S
2. T
3. H
4. A

Q.

When a figure is said to have a line symmetry?

1. We can fold a picture in half such that the right and left halves match exactly

2. The two halves are mirror images of each other

3. The two halves are not the mirror images of each other

4. None of these

Q.

For any figure to be point symmetric-

1. it must have atleast one line of symmetry

2. it must have two lines of symmetry

3. it must have multi line symmetry

4. it may or may not have any lines of symmetry

Q. Which of the following figures have both line symmetry and rotational symmetry?​

Q. The line dividing the figure or image into two identical parts is called the .

1. straight line
2. line of symmetry
3. parallel line

Q.

Which of these puzzle pieces are symmetrical?

1. 3 & 2
2. 1 & 4
3. 3 & 4
4. All of them

Q.

Which of the figures given below are symmetric?
(Each figure has given a number from 1 to 4. Select the corresponding number.)

1. 1

2. 2

3. 3

4. 4

Q. In the following figures, the mirror line (i.e., the line of symmetry) is given as a dotted line. Complete each figure performing reflection in the dotted (mirror) line.

1. 
2. 
3. 
4. 

Q.

Center of rotation of a figure will always be the point of symmetry of that figure. Is the statement True or False?

1. True

2. False

Q.

How many lines of symmetry does the figure has $?$ Draw the lines of symmetry.

Q. Which of the following has no line of symmetry?

1. Semi-circle
2. Kite
3. Scalene triangle
4. Arrowhead

Q.

What is a six-sided polygon called?

1. Hexagon

2. Pentagon

3. Octagon

4. Heptagon

Q.

A figure having no lines of symmetry is called unsymmetrical figure.

1. True

2. False