a) objętość a*b*c 2cm 1dm = 10 cm 5 mm = o,5 cm V= 10cm *2cm * 0,5cm = 10 cm ³ Pc = 2ac + 2bc + 2ab - pole powierzchni prostopadłościanu a 2cm b 1dm = 10 cm c 5 mm = o,5 cm Pc = (2*2cm*0,5cm)+(2*10cm*0,5cm)+(2*2cm*10cm) = 2cm ² + 10 cm ² + 40 cm ² = 52 cm ² b) V = a³ V= 1,2cm*1,2 cm * 1,2 cm =1,728 cm³ Pc = 6*a² 6* (1,2cm*1,2cm) = 6*1,44 cm²= 8,64 cm²
A. V=a*b*h V=20mm*100mm*5mm V=10000mm³ P= 2ab+2bh+2ah p=2*20*100+2*100*5+2*20*5 p=4000+1000+200 P=5200mm₂ B. V= a³ V=12mm³ V=1728mm³ P=6a² P=6*12mm² P=6*144mm² P=864mm²
