[tex]\boxed{1}.\\\\RS=12m\\\\ TB=1,5m\\\\ BS=3 m \\\\ TS=3,35 m\\\\ \frac{BS}{RS} = \frac{TB}{VR}\\\\ \frac{3}{12} = \frac{1,5}{VR} \\\\ VR= \frac{12*1,5}{3} \\\\\boxed{VR=6m}\\\\ \frac{BS}{RS} = \frac{TS}{VS}\\\\ \frac{3}{12}= \frac{3,35}{VS} \\ VS= \frac{12*3,35}{3}\\\boxed{VS=13,4} \\ \boxed{deci~inaltimea~totala~este~egala~cu~=6+13,4=19,4}[/tex]
[tex]\boxed{2}.\\\\
BC=1,5 m\\\\
OB=1,5 m\\\\
OD=15 m\\\\
AB=75 cm=0,75 m\\\\
\frac{OB}{OD}= \frac{AD}{VD} \\\\
\frac{0,5}{1,5}= \frac{0,75}{VD}\\\\
VD= \frac{1,5*0,75}{0,5} \\\\
\boxed{VD=22,5~m}\\\\
\boxed{Inaltimea~turnului~este~egala~cu~=22,5+1,5=24~m}
[/tex]