Introduction to Symmetry

Q.

The line which divides a figure into two equal parts is called the line of symmetry or axis of symmetry.

1. True

2. False

Q.

The letter Z has one line of symmetry.

1. True
2. False

Q.

List any four symmetrical objects from your home or school.

Q. The order of rotational symmetry of a regular pentagon is 5. What is the angle of rotation?

1. ${62}^{\circ }$
2. ${72}^{\circ }$
3. ${90}^{\circ }$
4. ${70}^{\circ }$

Q.

How many lines of symmetry are possible for an octagon? Show it with a diagram. [3 MARKS]

Q. How many lines of symmetry does this figure have?

1. One
2. Two
3. Three
4. Four

Q.

Draw a polygon with six lines of symmetry. [3 MARKS]

Q.

What is the feminine of enchanter?

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

1. True
2. False

Q.

An irregular shapes has no lines of symmetry.

1. False

2. True

Q.

A figure is said to have a line symmetry when:

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. Which of the following has exactly 5 lines of symmetry?

1. A circle
2. A regular pentagon
3. A triangle
4. A quadrilateral

Q.

Which of the following letters has no line of symmetry?

1. H
2. O
3. X
4. P

Q.

Which of the following figures have more than two lines of symmetry?

1. Parallelogram

2. Rectangle

3. Isosceles triangle

4. Regular Pentagon

Q. Find the vertical mirror image of :

1. 
2. 
3. 
4. 

Q. Which of the following digits have only 2 lines of symmetry?

1. \N
2. 1
3. 3
4. 8

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

1. asymmetrical
2. symmetrical
3. insymmetrical

Q. Which of the following are polygons?

1. 
2. 
3. 
4. 

Q.

___means that one shape becomes exactly like another when you move it in some way: turn, flip or slide.

Q.

State True or False:
The line of symmetry for a figure divides it into two equal halves in all aspects.

1. True
2. False

Q. Find the order of rotational symmetry for a fan if it has three blades.

1. 3

Q.

Give any two examples of non-symmetrical objects from your day-to-day life.

Q.

Question 62

Is there any line of symmetry in the figure? If yes, draw all the lines of symmetry.

Q. Which of the following figures are symmetrical?

1. 
2. 
3. 
4. 

Q.

Question 19

Fill in the blanks to make the statements true.

The number of lines of symmetry in a picture of Taj Mahal is ___.

Q.

Which of the following letter is symmetrical?

1. Letter 'A'

2. Letter 'F'

3. Letter 'G'

4. Letter 'L'

Q.

$l$Queston 67

Match the following:

$\begin{array}{cccc}& \text{Shape}& & \text{Number of lines symmetry}\\ \left(i\right)& \text{Isosceles triangle}& \text{(a)}& 6\\ \left(ii\right)& \text{Square}& \text{(b)}& 5\\ \left(iii\right)& \text{Kite}& \text{(c)}& 4\\ \left(iv\right)& \text{Equilateral triangle}& \text{(d)}& 3\\ \left(v\right)& \text{Rectangle}& \text{(e)}& 2\\ \left(vi\right)& \text{Regular hexagon}& \text{(f)}& 1\\ \left(vii\right)& \text{Scalene triangle}& \text{(g)}& 0\end{array}$

Q.

The letters X, V and M have point symmetry.

1. True

2. False

Q.

Which of the following is/are symmetrical object/s?

1. Letter 'A'

2. Blackboard

3. Flat plate

4. All of these

Q.

How many lines of symmetry are present in a parallelogram? Include a diagram for reference. [2 MARKS]