Question

O piramida triunghiulara regulata are l=18 si inaltimea de 6 cm.Aflati:
a) Ab
b) V
c) Al
d) At

Answer 1

a)Ab=$\frac{l²√3}{4}$=324/4*√3=81*√3
b)V=$\frac{h*Ab}{3}$=81*√3*6/3=162*√3
c)Al=$\frac{3*l²*√3}{4}$=243*√3
d)At=l²√3=324*√3

Answer 2

Piramida triunghiulara regulata ........