Finding Rotational Symmetry of Regular Pentagon [with Order] - Teachoo - Rotational Symmetry

part 2 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry
part 3 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry part 4 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry part 5 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry part 6 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry part 7 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry part 8 - Rotational Symmetry – Regular Pentagon - Rotational Symmetry - Concept wise - Chapter 12 Class 7 Symmetry

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Transcript

Rotational Symmetry – Regular PentagonIn case of regular pentagon, We rotate it about the center Let’s rotate it by 72° The figure looks the same as previous Angle at center = (360°)/5 = 72° Now suppose it rotates by 72° again The figure looks the same as previous Again it rotates 72° The figure looks the same as previous Again it rotates 72° The figure looks the same as previous Once again, it rotates 72° The figure looks the same as previous Suppose, it again rotates by 72° The figure looks the same as previous Thus, Thus, The figure is same as that of initial 5 turns. So, we say that figure has rotational symmetry of order 5.

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