Ando, Masanori  <br/><br/>
The Baumkuchen Theorem   (Journal Article) 

 - Philadelphia, PA   :Taylor & Francis Group   , September 2023 
 - 423-427p. 
 - Mathematics Magazine   Volume 96: Number 4, October 2023 .
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<br/><br/> Abstract: We present the Baumkuchen theorem, which is related to the sums of the areas of a divided Baumkuchen (annulus). The theorem can be proved using the basic properties of elementary geometry. We also provide an original proof of the well-known pizza theorem. 
<br/><br/><label>ISSN: </label>0025-570X   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Baumkuchen theorem | annulus| Conjectures| elementary geometry| pizza theorem