8.3 作正五边形

Steps to construct a regular pentagon inscribed inside a circle. Actually, the side of a regular decagon has been constructed first.

 

郑凯耀

 
Tipo de recurso
Actividad
Etiquetas
Grupo destino (edad)
15 – 18
Idioma
Chinese Traditional / 繁體中文‎
 
 
 
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