Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 12.2, 1 (e) - Chapter 12 Class 7 Symmetry
Last updated at July 6, 2023 by Teachoo
Ex 12.2
Ex 12.2, 1 (a)
Ex 12.2, 1 (b) Important
Ex 12.2, 1 (c) Important
Ex 12.2, 1 (d)
Ex 12.2, 1 (e) Important You are here
Ex 12.2, 1 (f) Important
Ex 12.2, 2 (a)
Ex 12.2, 2 (b) Important
Ex 12.2, 2 (c)
Ex 12.2, 2 (d) Important
Ex 12.2, 2 (e)
Ex 12.2, 2 (f) Important
Ex 12.2, 2 (g)
Ex 12.2, 2 (h) Important
Transcript
Ex 12.2, 1 (e) Which of the following figures have rotational symmetry of order more than 1: 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, 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
