Oblicz pole powierzchni prostopadlościanu o wymiarach - 4m , 2dm , 8dm
a=4m=40dm
b=2dm
c=8dm
Pc=2Pp+Pb
Pc=2·a·b+2·a·c+2·b·c
Pc=2·40dm·2dm+2·40dm·8dm+2·2dm·8dm
Pc=160dm²+640dm²+32dm²
Pc=832dm²
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a=4m=40dm
b=2dm
c=8dm
Pc=2Pp+Pb
Pc=2·a·b+2·a·c+2·b·c
Pc=2·40dm·2dm+2·40dm·8dm+2·2dm·8dm
Pc=160dm²+640dm²+32dm²
Pc=832dm²