# Ex 14.2, 2 (h) - Chapter 14 Class 7 Symmetry

Last updated at Sept. 21, 2021 by Teachoo

Last updated at Sept. 21, 2021 by Teachoo

Transcript

Ex 14.2, 2 (h) Give the order of rotational symmetry for each figure: Since circle is divided into 3 equal sectors, Angle at center = (360°)/3 = 120° Let’s rotate it by 120° This figure looks same as previous Suppose it rotates 120° again This figure looks same as previous Again it rotates 120° This figure looks same as previous Thus, Thus, in 1 – full turn (i.e 360°) The figure is same as that of initial 3 turns. So, we say that figure has rotational symmetry of order 3

Ex 14.2

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