latura bazei(l)=2cm
Aria laterala(Al)=18 cm²
-----------------------------------
h=?
Ab=?
At=?
V=?
-----------
Pb=3*l=3*2=6cm
Aria laterala=Pb*h⇒h=Pb/Al=18/6=3 cm
h=3cm
Aria bazei=l²*√3/4=2²x√3/4=4√3/4 cm²
Ab=√3cm²
Aria totala=Al+2Ab=18+2√3
V=Ab*h=√3*3=3√3 cm³
V=3√3cm³
Sper ca te-am ajutat!