## Ncert Solutions for Class 6 Maths Chapter 13 Symmetry Exercise 13.1:-

**Exercise 13.1**Ā Class 6 maths NCERT solutions Chapter 13 Symmetry pdf download:-

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### Ncert Solution for Class 6 Maths Chapter 13 Symmetry Exercise 13.1 Tips:-

**Introduction:-**

Symmetry is quite a common term used in day to day life. When we see

certain figures with evenly balanced proportions, we say, āThey are

symmetricalā.

These pictures of architectural marvel are beautiful

because of their symmetry.

Suppose we could fold a picture in half such that the

left and right halves match exactly then the picture is said

to have line symmetry . We can see that the two

halves are mirror images of each other. If we place a mirror

on the fold then the image of one side of the picture will

fall exactly on the other side of the picture. When it happens,

the fold, which is the mirror line, is a line of symmetry (or

an axis of symmetry) for the picture.

Tajmahal (U.P.) Thiruvannamalai (Tamil Nadu)

The shapes you see here are symmetrical. Why?

When you fold them along the dotted line, one half of

the drawing would fit exactly over the other half.

How do you name the dotted line in the figure?

Where will you place the mirror for having the image

exactly over the other half of the picture?

The adjacent is not symmetrical.

Can you tell āwhy notā?

**Making Symmetric Figures : Ink-blot Devils**

Take a piece of paper. Fold it in half.

Spill a few drops of ink on one half side.

Now press the halves together.

What do you see?

Is the resulting figure symmetric? If yes, where is

the line of symmetry? Is there any other line along which

it can be folded to produce two identical parts?

Try more such patterns.

Inked-string patterns

Fold a paper in half. On one half-portion, arrange short lengths of string

dipped in a variety of coloured inks or paints. Now press the two halves.

Study the figure you obtain. Is it symmetric? In how many ways can it be

folded to produce two identical halves?

List a few objects you find in your class

room such as the black board, the table, the

wall, the textbook, etc. Which of them are

symmetric and which are not? Can you identify

the lines of symmetry for those objects which

are symmetric?