2 Twicrctoetia XalesA:
1 0.20 = v4C7
jr -4C- — -Ł
-—- = 20,40
-^ic:
sin 30'
/IC
sin 3©c
1 0,20 - (20,40 — ^,^Q) _ = 8/rf
20,-40 2
121 ,6 m3
1 38,32 m3 1356919 WW
= 60
1 6,72 = 1 38,32 =
^ 7 '