Odpowiedzi

2010-03-16T18:19:57+01:00
V = 4/3πR*R*R
36π = 4/3πR*R*R
27 = R*R*R
R = 9

P = 4πR*R
P = 4π*81
P = 324π
7 1 7
2010-03-16T18:20:09+01:00
V=36π
v=πr2
r=6
p=2πr
p=12π
5 4 5
2010-03-16T18:24:52+01:00
V=4/3πr^3
^3-(sześcian)
V=36π
36π=4/3πr^3 /:3π
12=4/3r^3 /:4/3
12*3/4=r^3
9=r^3
r=3 pierwiastek z 3

P=4πr^2
^2 - (kwadrat)
P=4π(3pierwiatek z 3)^2
P=4π*9*3
P=27*4π

P=108π
25 1 25