File:Visual proof cone volume.svg

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Summary

Description

Proof without words that the volume of a cone is a third of a cylinder of equal diameter and height by CMG Lee.

  1. A cone and a cylinder have radius r and height h.
  2. Their volume ratio is maintained when the height is scaled to h' = rπ.
  3. The cone is decomposed into thin slices.
  4. Using Cavalieri's principle, each slice is reshaped into a square of the same area.
  5. The pyramid is replicated twice.
  6. Combining them into a cube shows that the volume ratio is 1:3.
Source Own work
Author Cmglee

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Date/TimeThumbnailDimensionsUserComment
current14:54, 16 October 2024Thumbnail for version as of 14:54, 16 October 2024512 × 683 (4 KB)CmgleeLabel base areas
14:06, 16 October 2024Thumbnail for version as of 14:06, 16 October 2024512 × 683 (4 KB)CmgleeFlip gradient and fix description wikitext
13:49, 16 October 2024Thumbnail for version as of 13:49, 16 October 2024512 × 683 (4 KB)Cmglee{{Information |Description=Proof without words that the volume of a cone is a third of a cylinder of equal diameter and height by CMG Lee. {| |valign="top"|{{nowrap|1.}}||A cone and cylinder of radius ''r'' and height ''h''. |- |valign="top"|2.||The volume ratio is maintained when the height is scaled to ''h''' = ''r'' √''Π''. |- |valign="top"|3.||The cone is decomposed into thin slices. |- |valign="top"|4.||Each silce can be transformed into a square of side ''h''' using Cavalieri...

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