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Ex 12.3, 5 - Chapter 12 Class 7 Symmetry
Last updated at Dec. 16, 2024 by Teachoo
Chapter 12 Class 7 Symmetry
Concept wise
- Symmetry
- Making shapes using mirror line
- Multiple lines of symmetry
- Rotational Symmetry
-
Lines and Rotational symmetry (Both)
- Line and Rotational symmetry - Alphabets
Transcript
Ex 12.3, 5 Name the quadrilaterals which have both line and rotational symmetry of order more than 1.Square In case of square, we rotate it about the center Let’s rotate it by 90° The figure looks the same as previous Now, suppose we rotate The figure looks the same as previous Again, we rotate it by 90° The figure looks the same as previous Suppose, it again rotates 90° The figure looks the same as previous Thus, Thus in 1 full turn (i.e. 360°) The figure is same as that of initial 4 turns So, we say that figure has rotational symmetry of order 4
