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Czyli 2*5=10
V=2*2*5=20cm .;d .
120cm2
20 cm3
2.
6000000000000000cm2
100000cm3
P= 2 (2cm x 2 cm) + 2 (2cm x 5 cm) + 2 (2 cm x 5 cm)=
2x 4 cm + 2 x 10 cm + 2x 10 cm= 8 cm + 20 cm + 20 cm= 48 cm 2
b ) V= a x b x c
V= 2 cm x 2 cm x 5 cm= 20 cm 3
2. 10 cm- 0, 1 m
a) P= 2 x (1 m x 1m) + 2 x (1m x 0,1 m) + 2x (1m x 0,1 m)=
= 2m + 0,2m + 0,2m= 2,2 m 2
b) V= 1m x 1m x 0,1 m= 0,1 m 3