Question

o prisma triunghiulara regulata are toate muchiile egale cu 6 cm.Volumul prismei egale cu:

Answer 1

Aria bazei×inaltimea adica

(l×l×radical din3):4×6
=(6×6radical din 3):4×6
=36radical din 3 :4×6
=9rdical din 3 ×6
=54 radical din 3 cm cubi

Answer 2

$\it \mathcal{V} = \mathcal{A}_b \cdot h = \dfrac{\ell^2\sqrt3}{4}\cdot h = \dfrac{6^2\sqrt3}{4} \cdot6 = \dfrac{36\sqrt3}{4} \cdot6 = 9\sqrt3 \cdot6 = 54\sqrt3$cm³