Geometric Formulas for Volume and Surface Area Calculations
This page presents a comprehensive collection of formulas for calculating the volume, surface area, and other key measurements of various three-dimensional shapes. The information is organized in a clear, visual format with accompanying diagrams for each shape.
Cube (Würfel)
The cube section provides formulas for:
- Volume V: a³
- Base area AG: a²
- Surface area A1: 6a²
Definition: A cube is a three-dimensional solid object with six square faces of equal size.
Square Pyramid (Quadratische Pyramide)
For the square pyramid, the following formulas are given:
- Volume V: 1/3 · a² · h
- Base area AG: a²
- Lateral surface area An: 2a · ha
- Total surface area A1: aa+2ha = a² + 2aha
Vocabulary: "ha" likely refers to the slant height of the pyramid.
Cone (Kreiskegel)
The cone section includes:
- Volume V: 1/3 · πr² · h
- Base area AG: πr²
- Lateral surface area AM: πrs
- Total surface area A1: πrr+s = πr² + πrs
Highlight: The formula s² = r² + h² is provided, which relates the slant height s to the radius r and height h of the cone.
Cuboid (Quader)
For the cuboid, we have:
- Volume V: a · b · c
- Base area AG: ab
- Surface area A1: 2ab+ac+bc
Example: A cuboid with dimensions 3 cm, 4 cm, and 5 cm would have a volume of 3 · 4 · 5 = 60 cm³.
Cylinder (Kreiszylinder)
The cylinder formulas include:
- Volume V: πr² · h
- Base area AG: πr²
- Lateral surface area AM: 2πr · h
- Total surface area A1: 2πrr+h = 2πr² + 2πrh
Vocabulary: "AM" stands for "Mantelfläche" which is the lateral surface area of the cylinder.
Sphere (Kugel)
For the sphere, the document provides:
- Volume V: 4/3 · πr³
- Surface area A1: 4πr²
Highlight: The volumen kugel warum 4/3 is a common question, and this formula shows that the volume of a sphere is indeed 4/3 times π times the cube of its radius.
The page effectively combines Formeln Körper Volumen und Oberfläche for quick reference, making it an excellent resource for students studying geometry or anyone needing to perform Volumenberechnung or surface area calculations for these common shapes. The inclusion of diagrams helps visualize each shape and its dimensions, aiding in understanding and application of the formulas.