Which of the following crystal systems has a | vedclass

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(C) The crystal system with axial lengths $a = b = c$ and axial angles $\alpha = \beta = \gamma 
eq 90^o$ is known as the Rhombohedral (or Trigonal)

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Rhombohedral

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(C) The crystal system with axial lengths $a = b = c$ and axial angles $\alpha = \beta = \gamma 
eq 90^o$ is known as the Rhombohedral (or Trigonal) system.Crystal SystemAxial DistancesAxial AnglesTetragonal$a = b 
eq c$$\alpha = \beta = \gamma = 90^o$Hexagonal$a = b 
eq c$$\alpha = \beta = 90^o, \gamma = 120^o$Rhombohedral$a = b = c$$\alpha = \beta = \gamma 
eq 90^o$Monoclinic$a 
eq b 
eq c$$\alpha = \gamma = 90^o, \beta 
eq 90^o$

Which of the following crystal systems has $a = b = c$ and $\alpha = \beta = \gamma \neq 90^o$?

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