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  1. Chapter 14 Class 7 Symmetry
  2. Serial order wise

Transcript

Ex 14.3, 6 After rotating by 60° about a centre, a figure looks exactly the same as its original position. At what other angles will this happen for the figure?Figure looks exactly same after rotating 60° about its Centre Thus, it will look same after rotating 60° about his Centre every time ∴ It will happen at 0°, 60°, 120°, 180°, 240°, 300° Example: Regular hexagon Hexagon If rotated by 60° Again rotate it by 60° Here, Angle at center = (360°)/6 = 60°

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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.