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  1. Chapter 14 Class 7 Symmetry
  2. Concept wise

Transcript

Rotational Symmetry – Line with SemicirclesSuppose it rotates 90° It doesn’t looks same as previous Now suppose it again rotates 90° It doesn’t looks same as previous Again, it rotates 90° It doesn’t looks same as previous Suppose it again rotates 90° The figure looks same as initial one Thus, Thus, in 1 full turn The figure is same as that of initial 1 turn So, we say that figure has rotational symmetry of order 1.

About the Author

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.