NCERT Book Class 4 Mathematics (Math Mela) Chapter 11 Fun with Symmetry

Chapter Fun with
11 Symmetry

In previous grades, we have explored symmetry in rangolis, masks, bead
strings and in buildings.
Let us explore more about symmetry.

Let Us Do

1. Ink Design

Step 1: Take a sheet of paper and fold it in half.

Step 2: Open it and sprinkle some drops of water
colours in the centre of the fold.

Step 3: Press it to spread the colour evenly.

Step 4: Look what you made!

Is it a symmetrical pattern?
Where would you draw the line that divides this design
into two equal halves?
Isn’t this line called the line of
symmetry? I made it while making
masks and rangolis in Grade 3 too.