oblicz pole powierzchni prostopadloscianu o wymiarach a 4cm 3cm 6cm b 7dm 7dm 5dm c 12cm 3cm 9cm d 4m2dm 8dm
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a=4cm
b=3cm
c=6cm
Pc=2*4cm*6cm+2*4cm*3cm+2*3cm*6cm= 48cm+24cm+36cm=108cm2 b)
a=7dm
b=7dm
c=5dm
Pc=2*7dm*5dm+2*7dm*7dm+2*7dm*5dm=70dm+98dm+70dm=
=238dm2 c)
a=12cm
b=3cm
c=9cm
Pc=2*12cm*6cm+2*12cm*3cm+2*3cm*6cm=144cm+72cm+36cm= =252cm2
d)
a=4m=40dm
b=2dm
c=8dm
Pc=2*40dm*8dm+2*40dm*2dm+2*2dm*8dm=640dm+160dm+32dm= =832dm2