notam ABCDA'B'C'D'
ducem A'M_I_AC
latura baza mare =√128=8√2 cm
diagonala baza mare = √(8√2)²×2=√128×2=√256=16 cm
latura baza mica =√18=3√2 cm
diagonala baza mare = √(3√2)²×2=√18×2=√36=6 cm
AM=(16-6)/2=5 cm
in triunghiul dreptunghic AMA'
inaltimea=AA'=√(10²-5²)=√(100-25)=√75=5√3 cm