Tetraëder: Verskil tussen weergawes
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Jcwf (besprekings | bydraes) No edit summary |
Jcwf (besprekings | bydraes) No edit summary |
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Lyn 7:
Die inhoud van 'n tetraëder met sy '''s''' is:
<math> V = \frac{s^3}{6 \
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