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pp=1/2*(2+6)*3=1/2*8*3=4*3=12 (cm2)
pb= 10cm*3cm*2cm=60 cm2
pb=10*2=20 cm2
pb= 10cm*6cm=60 cm2
pc= 60+20+12= 92 (cm2)
pp--- pole podstawy
pb--- pole boczne
pc--- pole całkowite
Pb = 2 * 10 + 3 * 10 + 6 * 10 + 5 * 10 = 20 + 30 + 60 + 50 = 160
Pc = 2 * 12 + 160 = 184