V=144cm³
a=9cm
b=8cm
c=?
144=9*8*c
144=72c
c=2cm
P=2ab+2bc+2ac
P=2*9*8+2*8*2+2*9*2=144 + 32 + 36 = 212 cm²
V=abc
144=9*8*c/:72
c=2 cm
P=2ab+2ac+2bc
P=2*9*8+2*2*9+2*2*8=144+36+32= 212 cm²
Odp. Pole powierzchni tego prostopadloscianu wynosi 212 cm².
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V=144cm³
a=9cm
b=8cm
c=?
144=9*8*c
144=72c
c=2cm
P=2ab+2bc+2ac
P=2*9*8+2*8*2+2*9*2=144 + 32 + 36 = 212 cm²
V=abc
144=9*8*c/:72
c=2 cm
P=2ab+2ac+2bc
P=2*9*8+2*2*9+2*2*8=144+36+32= 212 cm²
Odp. Pole powierzchni tego prostopadloscianu wynosi 212 cm².