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2 Pc = 2*4*5+2*4*3+2*5*3=40+24+30= 94 dm2
3. v=1,5*2*7 = 21cm3
4. 168/12 = 14
Pc = 6*14*14 = 1176 c,3
5. 1,4 m3 = 1400 dm3 = 1400l
6. H =1
Pp= 5*5pierwiatsek z 3
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4
V = 25*pierwiastek z 3 *1
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4
V = 25*pierw. z 3
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4
opd. C
7. 8*3 + 6*4 = 24+24=48
odp.b
8. 20 dm = 200 cm
30 mm = 3 cm
V = 200*3*1 = 600 cm3
odp. d