The volume of a stretched tetrahedron; the easy way?

Martin Griffiths ^[1]
1. [1] University of Essex
  
  University of Essex
  
  Colchester District, Reino Unido
Localización: Teaching mathematics and its applications, ISSN 0268-3679, Vol. 34, Nº. 4, 2015, págs. 205-213
Idioma: inglés
DOI: 10.1093/teamat/hrv002
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Resumen
- We consider here a number of ideas for the classroom or lecture theatre associated with the mensuration of solids. In particular, the volumes of various tetrahedra are obtained in an indirect manner (by way of prisms and square-based pyramids). This activity develops problem-solving skills, spatial visualization and a from-first -principles approach to integration. Several suggestions are also provided for taking things further.