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Pp=2* (1/2*(14cm+26cm)* 8cm
Pp=2*160cm2=320cm2
<jedna połowa podstawy to trapez równoramienny>
Pśb= 4*(10cm*12cm) + 2*(14cm*12cm)=480cm2+336cm2
Pc=2*320cm2+816cm2=1456cm2
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V=320cm2*12cm=3840cm3