NCERT Solutions Class 6 Maths Chapter 13 Symmetry Ex 13.1

NCERT Solutions Class 6 Maths
Chapter – 13 (Symmetry)

The NCERT Solutions in English Language for Class 6 Mathematics Chapter – 13 Symmetry Exercise 13.1 has been provided here to help the students in solving the questions from this exercise.

Chapter 13: Symmetry

• NCERT Solution Class 6 Maths Exercise – 13.2
• NCERT Solution Class 6 Maths Exercise – 13.3

Exercise – 13.1

1. List any four symmetrical objects from your home or school.

Solutions:

The four symmetrical objects are
1. Black Board,
2. Notebook
3. Dinning table
4. the computer disc.

2. For the given figure, which one is the mirror line, l₁ or l₂?
Solutions:

l₂ is the mirror line of the figure. When given figure is folded about the line l₂ the left part exactly cover the right part and vice versa.

3. Identify the shapes given below. Check whether they are symmetric or not. Draw the line of symmetry as well.

Solutions:

(a) Yes. The given symmetric figure is a lock in which vertical line ‘l’ is the line of symmetry.
(b) Yes. The given figure is a symmetrical bucket in which vertical line ‘l’ is the line of symmetry.
(c) No, it is not a symmetric
(d) Yes. The given figure is a symmetric telephone in which vertical line l is called the line of symmetry.
(e) Yes. The given figure is symmetrical. Horizontal line l is called the line of symmetry.
(f) Yes. The given figure is symmetrical. Vertical line l is called its line of symmetry.

The following figures given below are the line of symmetry

4. Copy the following on a squared paper. A square paper is what you would have used in your arithmetic notebook in earlier classes. Then complete them such that the dotted line is the line of symmetry.

Solutions:

To make the dotted line as a line of symmetry the given figure may be drawn as follows.
(a)
 
(b)

(c)

(d)

(e)

(f)

5. In the figure, l is the line of symmetry. Complete the diagram to make it symmetric.

Solutions:

The below figure is the complete diagram to make it symmetric

6. In the figure, l is the line of symmetry. Draw the image of the triangle and complete the diagram so that it becomes symmetric.

Solutions:

The required triangle may be drawn as follow to make it symmetric