Geometry Formulas and Surface Area in German

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Questions and Answers

Was ist der Oberflächeninhalt eines 3D-Körpers?

  • Die Summe der Flächen aller Oberflächen (correct)
  • Die Fläche einer Seitenfläche
  • Die Summe der Volumina aller 3D-Formen
  • Die Länge eines Körpers

Wie berechnet man die Oberfläche eines Quaders?

  • SA = 2lw + 2lh + 2wh
  • SA = 2(lw + lh + wh) (correct)
  • SA = lw + lh + wh
  • SA = lw + 2lh + wh

Was ist die Einheit des Volumens von Kuboiden?

  • Liter
  • Gramm
  • Kubikmeter (correct)
  • Quadratmeter

Wie berechnet man das Volumen eines Quaders?

<p>V = lwh (B)</p> Signup and view all the answers

Welche Formel berechnet man das Volumen eines Zylinders?

<p>V = πr^2h (A)</p> Signup and view all the answers

Wie berechnet man die Oberfläche einer Kugel?

<p>SA = 4Ï€r^2 (D)</p> Signup and view all the answers

Welche Formel berechnet man das Volumen einer Kugel?

<p>V = (4/3)Ï€r^3 (B)</p> Signup and view all the answers

Was ist die Formel für die Oberfläche eines Würfels?

<p>6 × s² (B)</p> Signup and view all the answers

Was ist die deutsche Bezeichnung für die Oberfläche eines 3D-Körpers?

<p>Oberflächeninhalt (B)</p> Signup and view all the answers

Wenn die Seitenlänge eines Würfels 4 cm beträgt, wie groß ist die Oberfläche?

<p>96 cm² (C)</p> Signup and view all the answers

Was ist die Formel für das Volumen eines Würfels?

<p>s³ (B)</p> Signup and view all the answers

Wie berechnet man das Volumen eines rechteckigen Quaders?

<p>l × w × h (B)</p> Signup and view all the answers

Was ist die Einheit des Oberflächeninhalts?

<p>cm² (C)</p> Signup and view all the answers

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Study Notes

Geometry Notes

Surface Area

  • The surface area of a 3D shape is the total area of all its surfaces.
  • Formula: SA = 2(lw + lh + wh) for a cuboid, where l is length, w is width, and h is height.
  • SA = 4Ï€r^2 for a sphere, where r is the radius.
  • SA = 2Ï€r(h + r) for a cylinder, where r is the radius and h is the height.

Volume of Cuboids

  • The volume of a cuboid is the amount of space inside the cuboid.
  • Formula: V = lwh, where l is length, w is width, and h is height.
  • Unit of measurement: cubic units (e.g. cubic meters, cubic centimeters)

Oberflächeninhalt (Surface Area in German)

  • Oberflächeninhalt is the German term for surface area.
  • It is the sum of the areas of all surfaces of a 3D shape.
  • Important for calculating the surface area of various shapes, such as cubes, cuboids, and spheres.

Formeln fuer Volumen (Formulas for Volume in German)

  • Formulas for calculating the volume of different shapes:
    • Cuboid: V = lwh
    • Cube: V = s^3, where s is the side length
    • Cylinder: V = Ï€r^2h, where r is the radius and h is the height
    • Sphere: V = (4/3)Ï€r^3, where r is the radius
    • Cone: V = (1/3)Ï€r^2h, where r is the radius and h is the height

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