Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Rotational Symmetry - Star
Last updated at May 29, 2023 by Teachoo
Rotational Symmetry
Rotational Symmetry
Rotational Symmetry - Wheel
Rotational Symmetry - Star You are here
Rotational Symmetry - Equilateral triangle
Rotational Symmetry – Line with Semicircles
Rotational Symmetry – Plus Sign
Rotational Symmetry – Square
Rotational Symmetry – Rectangle
Rotational Symmetry – Regular Pentagon
Ex 12.1, 1
Ex 12.1, 2 (a)
Ex 12.1, 2 (b) Important
Ex 12.1, 2 (c)
Ex 12.1, 2 (d)
Ex 12.1, 2 (e) Important
Transcript
Rotational Symmetry - StarFor a metal, Here, the angle in the middle is Angle = (360°)/5 = 72° Suppose it rotates 72° about center The figure looks the same as previous Now suppose it rotates again 72° 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 72° The figure looks the same as previous Thus, Thus, in 1 full turn (i.e 360°) The figure is same as that of initial 5 turns So, we say that figure has rotational symmetry of order 5
