OBLICZ POLE PROSTOKĄTA I WYMIARACH A- 13m x 19m b- 8,5cm x 3cm c- 4½dm x 6 dm d- 2,5cm x 72mm e- 6,3 m x 25 cm f-4,5m x 8 km pliss pomocy to na jutro !!!!!!

[latex]P=a*b \ a)P=13*19=247[m ^{2} ] \ b)P=8,5*3=25,5[cm ^{2} ] \ c)P=4 frac{1}{2} *6=27[dm ^{2} ] \ \ d)72mm=7,2cm \ P=2,5*7,2=18[cm ^{2} ] \ \ e)25cm=0,25m \ P=0,25*6,3=1,57[m ^{2} ] \ \ f)8km=8000m \ P=4,5*8000=36000[m ^{2} ][/latex]