Question

1.O prisma triunghiulara regulata are latura bazei 6 cm si inaltimea 5√2 . Calculati suma muchiilor laterale , aria laterala si volumul prismei .

Answer 1

r..................................

Answer 2

$A_l$=3lh=3*6*5√2=90√2 (cm²)
V=$A_b$*h
$A_b$=l²√3 supra 4=6²√3 supra 4=36√3 supra 4=9√3 (cm²)
V=9√3*5√2=45√6 (cm)
Suma : 3*5√2=15√2