Flächeninhalte ebener Figuren Flächeninhalt des Rechtecks: A = a ∙ b Rechteck: a = 14 m A = a ∙ b b = 6 m A = 14 ∙ 6 A = 84 m2 Flächeninhalt des Quadrats: A = a ∙ a Quadrat: a = 9 m A = a ∙ a A = 9 ∙ 9 A = 81 m2 Flächeninhalt des Parallelogramms: A = a ∙ ha A = b ∙ hb Parallelogramm: a = 12 m; ha = 8 m A = a ∙ ha A = 12 ∙ 8 w A = 96 m2 Flächeninhalt des Trapezes: A = (a + c) ∙ h __ 2 Trapez: a = 8 m; c = 6 m; h = 4 m A = (a + c) · h __ 2 A = (8 + 6) ∙ 4 __ 2 w A = 28 m2 Flächeninhalt des Deltoids: A = e ∙ f _ 2 Deltoid: e = 12 m; f = 8 m A = e · f _ 2 A = 12 · 8 _ 2 w A = 48 m2 Flächeninhalt der Raute: A = e ∙ f _ 2 A = a ∙ ha Raute: e = 10 m; f = 4 m A = e · f _ 2 A = 10 · 4 _ 2 w A = 20 m2 Flächeninhalt des allgemeinen Dreiecks: A = a · ha _ 2 A = b ∙ hb _ 2 A = c · hc _ 2 Dreieck: a = 5 m; ha = 4 m A = a · ha _ 2 A = 5 · 4 _ 2 w A = 10 m2 Flächeninhalt des rechtwinkligen Dreiecks: A = a · b _ 2 Dreieck (a © b): a = 6 m; b = 4 m A = a · b _ 2 A = 6 · 4 _ 2 w A = 12 m2 A d d a b b a B D C A d d a a a a B D C D A B C a a ha hb b b c h d a b D C B A D B A C b b a a e f a e f D C B A a a a ha B C A b hc hb h a a c c a b B C A Ó Sprachaufgabe 7ac5wt 224 Zusammenfassung Nur zu Prüfzwecken – Eigentum des Verlags öbv
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