Name 7 crystal systems and describe the corresponding relationship between vectors a, b, c and angles between these vectors α, β, γ ?

Cubic (a = b = c; α = β = γ = 90o), tetragonal (a = b ≠ c; α = β = γ = 90o), hexagonal (a = b ≠ c; α = β = 90o; γ = 120o), trigonal (a = b ≠ c; α = β = 90o; γ = 120o), orthorhombic (a ≠ b ≠ c; α = β = γ = 90o), monoclinic (a ≠ b ≠ c; α = β = γ = 90o) and triclinic (a ≠ b ≠ c; α ≠ β ≠ γ ≠ 90o)