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Princess503
a fost răspuns

Un cilindru are:
Raza=3
Inaltimea=8
Aflati Aria laterala, Aria totala si Volumul


Dau coroana si 70 de puncte

Răspuns :

Ioniely
G=h
Ab= pi r^2=3^pi=9pi
Al=2pi*r*G
=2pi*3*8
=48pi
At=Al+2*Ab
=48pi+2*9pi=48pi+18pi=66pi
V=Ab*h=9pi*8=72pi cm^3
Siminafris
R=3cm
h=8cm
At=?
Al=?
V=?
Al=2pi*R*h=2pi*3*8=48pi cm^2
At=2pi*R(h+R)=2pi*3*(8+3)=2pi*3*11=66pi cm^2
V=pi R^2*h=pi 3^2*8=72pi cm^3

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