h/H= l/L => h/H=6/24 (simplificam) => h/H= 1/4 => (proportii derivate) H-h/H=4-1/4 => htrunchi/H=3/4=> H=3x4/3 => H= 4
/=SUPRA
h= inaltimea piramidei mici
l= lungimea bazei mici
L= lungimea bazei mari
H= inaltimea piramidei mari
htrunchi= inaltimea trunchiului