Question

O prisma patrulatera regulata are At=38cm patrati Al=30cm patrati calculati aria si perimetrul bazei

Answer 1

[tex]A_t = A_l + 2 A_b \\ \\ 38 = 30 + 2A_b \\ \\ 2A_b = 38 -30 \\ \\ 2A_b = 8~cm^2 \to A_b = 4 ~cm^2 \Rightarrow \boxed{l=\sqrt4 = 2~cm} \\ \\ \boxed{P_b = 2 \cdot 4 = 8cm}[/tex]