Question

intr-o piramida patrulatera regulata diagonala bazei are 6√2 cm,iar apotema piramidei 3√2. Calculati volumul piramidei. MA AJUTA CINEVA?

Answer 1

piramida patrulatera regulata(baza patrat)
diagonala bazei=6√2=l√2  => l=6 cm  (l=latura bazei)
ap(apotema piramidei)=3√2
Volumul piramidei = (Ab·h)/3
Ab=l²=6²=36 cm²
ab(apotema bazei)=l/2=6/2=3 cm
h=inaltimea piramidei           
h²=ap²-ab²
h²=(3√2)²-3²
h²=18-9
h²=9  => h=√9 => h=3 cm
V=(Ab·h)/3 = (36·3)/3=36 cm³

Answer 2

Sper ca te am ajutat!!!!!!!!