KM/MN = 2/7
MN = 7KM/2 = 3.5KM
KN = KM+MN = KM + 3.5KM = 4.5KM
Skpn= KN*h/2 = 4.5KM*h/2
Spmn = KM*h/2
Skpn /Spmn = 4.5
Ответ: Skpn /Spmn = 4.5
KM/MN = 2/7
MN = 7KM/2 = 3.5KM
KN = KM+MN = KM + 3.5KM = 4.5KM
Skpn= KN*h/2 = 4.5KM*h/2
Spmn = KM*h/2
Skpn /Spmn = 4.5
Ответ: Skpn /Spmn = 4.5