zad 2 2cm*1,5 cm
2*40=80 1,5*40=602*80 + 2*60=280cm260*80 = 4800zad 3 a) pole 30cm2 obwód 52cmb) pole 18cm2 obwód 35 cmzad4 a) P= 4,5 cm2P= 45mm2b)P= 2 cm2
P=2o mm2c)P=8cm2P=80mm2
zad 5a) 100800630b)100230470c)100007000025000d)100000020000000350000
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zad 2
2cm*1,5 cm
2*40=80 1,5*40=60
2*80 + 2*60=280cm2
60*80 = 4800
zad 3
a) pole 30cm2 obwód 52cm
b) pole 18cm2 obwód 35 cm
zad4
a) P= 4,5 cm2
P= 45mm2
b)P= 2 cm2
P=2o mm2
c)P=8cm2
P=80mm2
zad 5
a) 100
800
630
b)100
230
470
c)10000
70000
25000
d)1000000
20000000
350000