Odpowiedź:
1 cm = 10 mm
1cm2 = 100 mm2 ( 10 * 10 = 100)
1dm = 10 cm
1dm2 = 100dm2 (10*10=100)
1m = 100cm
1m2 = 10000cm2 (100 * 100 = 10000)
2.
p= 1dm * 1dm
p = 1dm2
p= 10 cm * 10 cm
p= 100 cm2
wiec 1dm2 = 100cm2
p= 3,4 m * 2m
p= 6,8 m2
3,4 m = 340 cm
2m = 200cm
p= 340cm * 200cm
p= 68 000 cm 2
wiec 6,8 m2 = 68 000cm2
pole prostokata = a*b
pole kwadratu = a*a
