Extensions 1→N→G→Q→1 with N=D₁₀ and Q=D₉

Direct product G=N×Q with N=D₁₀ and Q=D₉

		d	ρ	Label	ID
C₂×D₅×D₉		90	4+	C2xD5xD9	360,45

Semidirect products G=N:Q with N=D₁₀ and Q=D₉

extension	φ:Q→Out N	d	ρ	Label	ID
D₁₀⋊₁D₉ = C₄₅⋊D₄	φ: D₉/C₉ → C₂ ⊆ Out D₁₀	180	4-	D10:1D9	360,12
D₁₀⋊₂D₉ = C₉⋊D₂₀	φ: D₉/C₉ → C₂ ⊆ Out D₁₀	180	4+	D10:2D9	360,13

Non-split extensions G=N.Q with N=D₁₀ and Q=D₉

extension	φ:Q→Out N	d	ρ	Label	ID
D₁₀.D₉ = C₂×C₉⋊F₅	φ: D₉/C₉ → C₂ ⊆ Out D₁₀	90	4	D10.D9	360,44
D₁₀.₂D₉ = D₅×Dic₉	φ: trivial image	180	4-	D10.2D9	360,11

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Extensions 1→N→G→Q→1 with N=D10 and Q=D9