Oblicz pole powierzchni i objętość :
a) prostopadłościanu o wymiarach 6cm 5cm i 1,2 dm
b) sześcianu o krawędzi 8 cm
a)1,2dm=12cm
Pp=6x5=30 cm²
pb=ob podstawy * H
Pb=22 * 12=264 cm²
Pgr=2*Pp+Pb
Pgr=2*30+264
Pgr=324 cm²
V=abc
V=6*5*12
V=360 cm³
b)Pp=8*8=64 cm²
Pb=32*8=256cm₂
pgr=2*64+256=384 cm²
V=8³
V=512cm³
1dm = 10cm
1,2dm = 12cm
a) P= 2ab + 2ah + 2bh = 2*6*5 + 2*6*12 + 2*5*12 = 60 + 144 + 120 = 364cm^2
V= abh = 6*5*12 = 360cm^3
b) P= 6a^2 = (6*8)^2 = 384
V=a^3 = 8*8*8 = 512
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a)1,2dm=12cm
Pp=6x5=30 cm²
pb=ob podstawy * H
Pb=22 * 12=264 cm²
Pgr=2*Pp+Pb
Pgr=2*30+264
Pgr=324 cm²
V=abc
V=6*5*12
V=360 cm³
b)Pp=8*8=64 cm²
Pb=32*8=256cm₂
pgr=2*64+256=384 cm²
V=8³
V=512cm³
1dm = 10cm
1,2dm = 12cm
a) P= 2ab + 2ah + 2bh = 2*6*5 + 2*6*12 + 2*5*12 = 60 + 144 + 120 = 364cm^2
V= abh = 6*5*12 = 360cm^3
b) P= 6a^2 = (6*8)^2 = 384
V=a^3 = 8*8*8 = 512