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2010-03-10T14:31:03+01:00
1)d=24 cm
H=15cm
V=πr²*H
r=d:2=24:2=12
V=π12²*15
V=π144*15
V=2160π≈ 2160*3.14≈6782cm³
1l=1000 cm³
V=6,782 l

2) d=12 cm
V=0,36π dm³=360π cm³
H=?
V=πr²*H
r=d:2
r=6
360π=π6²*H
360π=π36*H /:36π
H=10 cm
2010-03-10T14:35:01+01:00
2) V= 360pi cm3 promien r=6cm
360pi= pir2 * H
360pi = 36pi * H / 36pi
H= 10