5.1 |
β = 7α Bestimme α', β', γ' und δ'. |
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Lösung
α + 7α = 180° 8α = 180° | : 8 α = 22,5°
α' = α = 22,5° β' = 180° – 22,5° = 157,5° γ' = α' = 22,5° δ' = β' = 157,5°
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5.2 |
γ' = 0,25 δ' Bestimme γ', δ und α. |
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Lösung
δ' + 0,25 δ' = 180° 1,25 δ' = 180° | : 1,25 δ' = 144°
γ' = 180° – 144° = 36° δ = δ' = 144° α = γ' = 36°
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5.3 |
β = α + 75° Bestimme α, β und δ'. |
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Lösung
α + α + 75° = 180° 2α + 75° = 180° | – 75° 2α = 105° | :2 α = 52,5°
β = 52,5° + 75° = 127,5° δ' = β = 127,5°
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5.4 |
δ' = 2γ' + 30° Bestimme β' und α. |
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Lösung
γ' + 2γ' + 30° = 180° 3γ' + 30° = 180° | – 30° 3γ' = 150° | :3 γ' = 50°
β' = 180° – 50° = 130° α = γ' = 50°
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5.5 |
α = 3δ – 60° Bestimme γ'. |
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Lösung
δ + 3δ – 60° = 180° 4δ – 60° = 180° | + 60° 4δ = 240° | : 4 δ = 60°
γ = 180° – 60° = 120° γ' = γ = 120°
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