Oblicz pole powierzchni i objętośc prostopadłościanu przedsaawionego na rysunku : (rys w załączniku pod spodem link) a) 13cm,11cm,19cm b)11cm,11cm,23cm c)10 cm,12 cm,15 cm http://img341.imageshack.us/i/beztytuuww.png/
andrzej3191
A) pc=2*13cm*11cm+2*11cm*9cm+2*13cm*9cm=718cm2 v=13cm*11cm*9cm=1287cm3 b)pc=2*11cm*11cm+2*11cm*23cm+2*11cm*23cm=1254cm2 v=11cm*11cm*23cm=2783cm3 c) pc=2*15cm*12cm+2*12cm*10cm+2*15cm*10cm=911cm2 v=15cm*12cm*10cm=1800cm3
v=13cm*11cm*9cm=1287cm3
b)pc=2*11cm*11cm+2*11cm*23cm+2*11cm*23cm=1254cm2
v=11cm*11cm*23cm=2783cm3
c) pc=2*15cm*12cm+2*12cm*10cm+2*15cm*10cm=911cm2
v=15cm*12cm*10cm=1800cm3