Which of the crystal systems have all the axial distances (or edge lengths )equal?

Which of the crystal systems has all the axial angles equal but not equal to 90^(@) ?

Number of crystal systems having only 2 types of bravais lattices = x, number of crystal system having at least two interfacial angles equal = y and number of crystal systems having all the three edge lengths equal = z. Then find the value of x xx y xx z.

Number of crystal systems having only 2 types of bravais lattices = x, number of crystal system having at least two interfacial angles equal = y and number of crystal systems having all the three edge lengths equal = z. Then find the value of x xx y xx z.

The crystal system having rectangular prisms is

Tetragonal and orthorhombic crystal systems have same axial angles.

An example of a compound, which forms a crystal system in which all the edges and angles are different from each other is .......

Which of the following crystal will have at least two axial angle 90^(@)

Which of the following crystal systems has unit cell with a=bnec (a, b & c are the edge lengths)-

Name the crystal system in which all the three axes are of equal length which are inclined at the same angle but the angle is not equal to 90^@ ,