176,4=Sl+5/13Sl Sl=127,4 Sb=127,4*5/13=49 L=7 2p=7*4=28
apot.=127,4*2/28=9,1 r=7/2=3,5 h=V 9,1^2-3,5^2=8,4 V=49*8,4/3=137,2cm3
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