Oblicz pole prostokąta o bokach długości
a) 3 cm i 15 mm
b) 2 dm i 4 cm
c) 4 cm i 1,2 dm
d) 1,3 m i 1,1 m
Dje najlepsze!
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a)
3cm=30mm
15mm
P=a*b
P=30*15=450mm²
b)
2dm=20cm
4cm
P=20*4=80cm²
c)
4cm
1,2dm=12cm
P=4*12=48cm²
d)
1,3m
1,1m
P=1,3*1,1=1,43m²