Definitie: Prisma regulată reprezintă prisma dreapta cu baza poligon regulat. Formule utile: Aria laterală A l = P b ⋅ h Aria totală A t = 2 A b + A l Volumul V = A b ⋅ h Exemple de prisme regulate: 1. Prisma triunghiulară regulată (cu baza triunghi echilateral) Aria bazei va fi: A b = l 2 3 4 Perimetrul bazei va fi: P b = 3 l 2.
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prisma dreapta cu baza triunghi echilateral