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Ex 14.2, 1 (b) - Chapter 14 Class 7 Symmetry
Last updated at March 16, 2023 by Teachoo
Ex 14.2
Ex 14.2, 1 (a)
Ex 14.2, 1 (b) Important You are here
Ex 14.2, 1 (c) Important
Ex 14.2, 1 (d)
Ex 14.2, 1 (e) Important
Ex 14.2, 1 (f) Important
Ex 14.2, 2 (a)
Ex 14.2, 2 (b) Important
Ex 14.2, 2 (c)
Ex 14.2, 2 (d) Important
Ex 14.2, 2 (e)
Ex 14.2, 2 (f) Important
Ex 14.2, 2 (g)
Ex 14.2, 2 (h) Important
Transcript
Ex 14.2, 1 (b) Which of the following figures have rotational symmetry of order more than 1: Angle at center = (360°)/3 = 120° Let’s rotate it by 120° This figure looks same as previous. Again, rotate it by 120° This figure looks same as previous Suppose, it rotates by 120° again This figure looks same as previous Suppose, it rotates by 120° again This figure looks same as previous Thus, Thus, in 1 full turn (i.e. 360°) This figure is same as that of initial 3 turns So, we say that figure has rotational symmetry of order 3
