25. x=7,2 26.x=10 27.x=32√(2-√3)
25. KF=√KE²+EF²=√81+144=√225=15L=KE•EF/KF=9•12/15=7,2=x
26. MT=ST=8
MR=√MT²+TR²=√8²+6²=10=x
27. A=75°,B=30° => C=180°-75°-30°=75°
A=C MB=BA
B=30° =>MC=MB/2 MB=2MC=32 MB=BA=32
BC=√MB²-MC²=16√3
AC=AB-BC=32-16√3
AM=√MC²+AC²=32√(2-√3)
