Oblicz długość drugiego boku prostokąta na pdst. pola i jednego boku.
a) P=48 cm2 b) P=60 dm2 c)P=147 m2 d)P=3300 cm2
1 bok=8cm 1 bok=12dm 1 bok=7m 1 bok=11dm
2 bok=? 2 bok=? 2 bok=? 2 bok=?
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a = bok - 6 cm
b = bok 5 dm
c = bok 21 m
d = bok 11 dm = 110 cm - bok - 30 cm
a)
P=48cm2
1 bok=8 cm
2bok=48cm:8cm=6cm
b)
P=60 dm2
1 bok=12dm
2bok=60dm:12dm=5dm
c)
P=147 m2
1bok=7m
2bok=147m:7m=21m
d)
P=3300cm2
1bok=11dm
11dm=110cm
2bok=3300cm:110cm=300 cm
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