V=1/3*24*h=10
h=10/8=1.25cм
cosA=6/10=0.6sinA= √(1-0.6^2)=√(0.64)=0.8BC:AB=8:10BC=8.V пирамиды равен 1/3Sосн*hSосн=1/2(6*8)=24 10=1/3*(24*h)24*h=30h=30/24h=1.25
V=1/3*24*h=10
h=10/8=1.25cм
cosA=6/10=0.6
sinA= √(1-0.6^2)=√(0.64)=0.8
BC:AB=8:10
BC=8.
V пирамиды равен 1/3Sосн*h
Sосн=1/2(6*8)=24
10=1/3*(24*h)
24*h=30
h=30/24
h=1.25