Curved Surface Area of Cones

See how the curved surface of the cone can be flattened to a sector, which then be dissected and rearranged to see that its area is π r l, where r and l are the base radius and the slant height of the cone respectively. This applet combines the previous 3D applet ([url]206987[/url] or [url]166737[/url]) and its 2D counterpart ([url]161406[/url]) in a single applet. Anthony C.M. Or GeoGebra Institute of Hong Kong

 

C.J. Carlson

 
Tipo de recurso
Actividad
Etiquetas
area  cone  surface 
Grupo destino (edad)
14 – 18
Idioma
English
 
 
 
© 2025 International GeoGebra Institute