Odpowiedzi

2009-12-19T21:16:07+01:00
600 mm2; 250mm2; 10000mm2; 70mm2

700cm2 60cm2 20000cm2 500cm2
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2009-12-19T21:22:01+01:00
A)
6cm2 6x6=36 cm | 1 cm = 10mm 36 x 10 = 360 mm = 60mm2
2,5 cm2 2,5 x 2,5 = 5 cm 1 cm = 10 mm 5 x 10 = 50 mm = 7,5 mm2
1 dm2 = 1 dm = 10 cm = 100 mm = 1 x 100 = 100mm = 10mm2

b)
7dm2 = 14 dm 1 dm = 10 cm | 14 x 10 = 140 cm = 70cm2
0,6 dm2 = 0,36 dm = 0,36 x 10 = 3,60 cm = 0,6 cm2
2m2 = 1m = 100 cm | 2 x 100 = 200 cm
0,05 m2 - 1m = 100 cm | 0,05 x 100 = 5 cm = 2,5cm2
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