Question

O prisma patrulatera regulata are are aria laterala de 48 cm patrati si aria totala de 80 cm patrati.o latura a unei baze a prismei are lungimeade.....cm?

Answer 1

 [tex]A_t=A_l+2\cdot{A_b}\\ 80 - 48 =2\cdot{A_b}\;\;\;\rightarrow\;\;A_b=32:2=16cm^2\\ A_b= l^2 = 16 \;\;de\; unde\;\;l=\sqrt{16}=4cm\;;[/tex]