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-/////////////- 10cm - P=6*10*10 P=600 cm2
P=24 dm2
6 a2=24 dm2 /:6
a2=24:6
a2=4
a=2
Pole powierzchni prostopadłościanu
a=2cm ; b=2cm ;h=5cm
P=2*ab+2*bh+2*ah
P=2*2*2+2*2*5+2*2*5
P=48 cm2
a=1m; b=1m; h=10m
P=2*1*1+2*1*10+2*1*10
P=42 m2