Bonjour;
Volume cône
r= 4/2 => 2cm
(pir² * h)/3
(3,14*2² *13)/3
=>54,43 cm³
Volume 1/2 boule
(3pir³/)4
( 3*3,14*2³ )/4
= 18,84
1/2 boule => 18,84/2
=> 9,42 cm³
total:
54,43+9,42 => 63,85 cm³
volume pot:
pir² *h
3,14*5² *16
=> 1 256 cm³
nbre de cornets:
1 256/63,85
=>20 cornets