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t= 12 cm
mencari luas alas
La= (s²/4).√3
= (8²/4).√3
= (64/4)√3
= 16√3 cm²
mencari volume prisma
V= La.t
= 16√3.12
= 192√3 cm³
Prisma Segitiga sama sisi
Alas :
s = 8 cm
Tinggi prisma = 12 cm
ditanya :
V. prisma = ....?
V. prisma = L. Alas × tinggi prisma
L segitiga sama sisi
=
=
= 16 √3 cm²
V.prisma = L.alas × tinggi
= 16√3 × 12
= 192 √3 cm²
Jadi Volume prisma adalah 192√3 cm²