Question

1.O prisma patrulatera regulata are aria laterala de 48 cm² si aria totala de 80cm². O latura a unei baze a prismei are lungimea de...cm

Answer 1

Prisma fiind regulata, rezulta ca bazele sunt patrate.
Aria unei baze este: $\frac{ A_{totala}- A_{laterala} }{2}$=$\frac{80-48}{2}=16 ( cm^{2} ).$

$A_{baza} = (l_{baza})^{2} <=> 16 = (l_{baza}) ^{2} => l_{baza}=4(cm).$

Latura bazei are lungimea de 4 cm.