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Geometry

Circle and Disk (Kreisgeometrie)

This is a lesson from the Studienkolleg entrance exam preparation course. The full theory, worked examples and practice tasks unlock after you log in with paid access.

What is in this lesson

  1. 01BASIC FORMULAS (GRUNDFORMELN)
  2. 02PARTS OF A DISK (TEILFLÄCHEN)
  3. 03А) Arc length (Bogenlänge $b$)
  4. 04Б) Sector area (Kreissektor $AS$)
  5. 05В) Segment area (Kreissegment $A{Seg}$)
  6. 06ANNULUS (KREISRING)
  7. 07GOLDEN RULES AND PITFALLS
  8. 08IN-DEPTH LOOK: KREISGEOMETRIE (VERTIEFUNG)
  9. 09The relationship between angles and distances
  10. 10Circle segment (Kreissegment) — how to avoid mistakes
  11. 11The annulus (Kreisring) and its properties
  12. 12The big pitfall: area vs. length (quadratischer Fehler)
  13. 13Mentor's checklist (Schritte zum Erfolg)

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