a)
Ppc (pole powierzchni całkowitej)=(123)2 + (126)2 + (36)2 =72+144+36=252cm^2
V= 3612=216cm^3
b)
Ppc = (1/264)2 + 512 + 512 + 612 = 24+60+60+72=216cm^2
V = 1/2*(6*4)12 = 1212 = 144cm^3
c)
Ppc = (5*12)4 + (53)2 = 240 + 30 = 270cm^2
V = (53)*12 = 180cm^3
d)
Ppc = 1/2(10+4)42 + 5122 + 412 + 10*12 = 28+120+48+120=316cm^2
V = 1/2(10+4)*4 12 = 2812=336cm^3