Répondre :
Bonjour
r=13 ; R = 19;h = 14
Volume = Pi * 4/3 [ 19²+13²+(19*13) = 3626 * Pi = 11385.64 cm3
arrondi V = 11, 385 litres
car Volume = Pi *4/3(R²+r²+Rr) = Pi * 4/3( 19² +13² +(19*13) ) = Pi * 4/3( 361+247+169)
Volume = Pi * 4/3(777) = 3626 *Pi = 11385.64 cm3
1000 cm3 = 1 litre
r=13 ; R = 19;h = 14
Volume = Pi * 4/3 [ 19²+13²+(19*13) = 3626 * Pi = 11385.64 cm3
arrondi V = 11, 385 litres
car Volume = Pi *4/3(R²+r²+Rr) = Pi * 4/3( 19² +13² +(19*13) ) = Pi * 4/3( 361+247+169)
Volume = Pi * 4/3(777) = 3626 *Pi = 11385.64 cm3
1000 cm3 = 1 litre