Symmetry Class 6 Maths Notes - Chapter 13

Symmetry And Line Of Symmetry Definition –

The symmetry of an object is defined as one half of the object is a mirror image of the other half. When an object is split into half, both the sides are exactly the same. The line which divides them is called the line of symmetry. One simple example is reflection symmetry. The object can be divided into one or more than one lines of symmetry.

Below are some types of line of symmetry along with examples-

Sl.no Type Example
1 No line of symmetry Scalene triangle
2 1 line of symmetry Isosceles triangle
3 2 lines of symmetry Rectangle
4 3 lines of symmetry Equilateral triangle

Practical Geometry Important Questions

  1. Name four symmetrical objects from your home.
  2. In the below figure, the line of symmetry is l. Try to complete the diagram to make it symmetric.
  3. Symmetry Class 6 Maths Notes

  1. Can you draw the lines of symmetry for the given below figures-
  2. Symmetry Class 6 Maths Notes

  1. What is the number of lines of symmetry in each of the following figures-
  2. Symmetry Class 6 Maths Notes

  1. Fill in the blanks-
    1. A scalene triangle has _______ lines of symmetry.
    2. The alphabet S ________ line/lines of symmetry.
  1. Answer true or false-
    1. The alphabet H does not have a vertical line of symmetry.
    2. The alphabet X has only one line of symmetry.
    3. The alphabet E has both vertical as well as horizontal lines of symmetry.
  1. How many lines of symmetry can a circle have?
  2. Explain with a diagram the number of lines of symmetry in a rectangle.

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