Oblicz pole powierzchni :
a) PROSTOPADŁOŚCIANU o wymiarach 2cm x 1dm x 5mm
b) SZEŚCIAN o krawędzi 1,2 cm
a) Pc=2Pp+Pb
Pp= 2cm*0,5cm
Pp=1cm2
2Pp=2cm2
Pb= 2*(10cm*2cm) + 2*(10cm*0,5cm)
Pb=40cm2+10cm2
Pb=50cm2
Pc=2cm2+50cm2=52cm2
b) Pc=2Pp+Pb
Pp=1,2cm*1,2cm=1,44cm2
2Pp=2*1,44cm2=2,88cm2
Pb= 4*1,44cm2= 5,76cm2
Pc= 2,88cm2*5,76cm2= 8,64cm2.
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a) Pc=2Pp+Pb
Pp= 2cm*0,5cm
Pp=1cm2
2Pp=2cm2
Pb= 2*(10cm*2cm) + 2*(10cm*0,5cm)
Pb=40cm2+10cm2
Pb=50cm2
Pc=2cm2+50cm2=52cm2
b) Pc=2Pp+Pb
Pp=1,2cm*1,2cm=1,44cm2
2Pp=2*1,44cm2=2,88cm2
Pb= 4*1,44cm2= 5,76cm2
Pc= 2,88cm2*5,76cm2= 8,64cm2.