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-2. 1,5
-3.50
-4.12
2x+4x=156
6x=156 |:6
x=26
26*2=52
P=26m*52m=1352m²
1.7 he
2 1,5he
3.0,05he
4.12he
Zadanie 2
156x jedna trzecia=52-dłuższy bok
52x2=104
156-104=52
52:2=26-krótszy bok
p=axb
p=52x26
p=1352m kwadratowych