Oblicz pola prostokątów o wymiarach:
a. 3 cm / 3 mm = ?
b. 2 km / 10 m =?
c. 100 m / 100 cm =?
d. 0,5 dm / 50 cm =?
a) 3cm=30mm
Ob=2*30+2*3=66mm
b)
2km=2000m
ob= 2*2000+2*10=4020m
c)
100cm=1m
ob=2*100+2*1=202m
d)
0,5dm=5cm
ob=5*2+2*50=110cm
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a) 3cm=30mm
Ob=2*30+2*3=66mm
b)
2km=2000m
ob= 2*2000+2*10=4020m
c)
100cm=1m
ob=2*100+2*1=202m
d)
0,5dm=5cm
ob=5*2+2*50=110cm