(L-l)/2 =√(15²-12²)=√(225-144)=√81=9
(24-l)/2=9
24-l=18
l=24-18=6
h=√(12²-9²)=√(144-81)=√63=3√7
Abazei mari =24×24=576
Abazei mici =6×6=36
Al=(Pbaza mare+Pbaza mica)×at/2=(24×4+6×4)×12/2=792
At=792+576+36=1404
V=3√7/3 ×(576+36+√(576×36)=
=√7 ×(612+144)=756√7
