$\definecolor{red}{RGB}{255,0,0}$$\definecolor{black}{RGB}{0,0,0}$
  1. r
  2. r
  3. r
    • r  =   A / (2·π·h)
    • r2  =   V/(π·h)
  1. h
  2. h
  3. h
    • h  =   A / (2·π·r)
    • h  =   V/(π·r2)
  1. A
  2. A
  3. A
    • A  =   2·π·r·h
  1. V
  2. V
  3. V
    • V  =   π·r2·h
Trapezium: bases, sides, area , height

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