a) a=2m=20 dm b=7dm p=axh p=20x7=140dm kwadratowych b) a=3cm b=8km=800 000cm p=axh p=3x800 000=2400000 c)a=5dm b=4mm p=axh p=4x500=2000 d)a=6km b=30 dm p=axh p=60 000x30=1800000 e)a=1dm=10 cm b=160cm p=axh p=10x160=1600 f)a=2m=2000 b=10mm p=axh p=2000x10=20000
a) 2m = 200cm = 20dm P= 20dm × 7dm = 140dm² b) 8km = 8000m = 800000cm P = 3cm×800000cm = 2400000cm² c) 5dm = 50cm = 500mm P = 500mm × 4mm = 2000mm² d) 6km = 6000m = 600000cm = 60000dm P = 60000dm × 30dm = 1800000dm² e) 160cm = 16 dm P =1dm×16dm = 16dm² f) 2m = 200cm = 2000mm P = 2000mm×10mm = 20000mm²
a- 2m razy 7 dm = 20dm razy 7 dm = 140 dm do kwadratu b-3cm razy 8km = 3cm razy 800000cm = 24000000cm do kwadratu c - 5dm razy 4 mm = 5000 mm razy 4 mm = 20000 mm do kwadratu d - 60000 razy 30 dm = 1800000 e 1dm razy 160 cm = 10cm razy 160 cm = 1600cm do kwadratu f 2m razy 10 mm = 2000 mm razy 10 mm = 20000 mm do kwadratu
