Răspuns:
avem 3 feluri de arii intr-o prisma patrulatera regulata
aria bazei = Ab = l²
aria laterala = Al = Pb×h = 4l×h
aria totala = At = 2Ab + Al = 2l² + Pb×h
l = latura
h = inaltimea
Pb = 4l
[tex]\it \mathcal{A}_t= \mathcal{A}_\ell+ 2\cdot\mathcal{A}_b=4\ell\cdot h+2\ell^2[/tex]
