Explicație pas cu pas:
V=(Ab × h )/3
Ab=l² radical 3/4
Ab=12² radical 3 / radical 4
Ab=144radical 12 /4
Ab=72 radical 3
V=72 radical 3 ×12 /3
= 72 radical 3 ×3
=216 radical 3
[tex]ab = l^{2} \sqrt{ \frac{3}{4} } \\ = 12 ^{2} \frac{ \sqrt{3} }{ \sqrt{4} } \\ [/tex]
[tex] = 144 \frac{ \sqrt{12} }{4} \\ = 36 \sqrt{12} \\ = 36 \times 2 \sqrt { 3} = 72 \sqrt{3} [/tex]
[tex]v = \frac{ 72 \sqrt{3} \times 12 }{4} \\ = 18 \sqrt{2} \times 12 \\ = 216 \sqrt{3} [/tex]
