Jawaban:
A. Luas permukaan prisma = 1.176 cm²
Penjelasan dengan langkah-langkah:
Lp = 2 × L alas + K alas × t prisma
Lp = 2 × 1/2 × a × t + s+s+s × t prisma
Lp = 2 × 1/2 × 18 × 12 + 18+15+15 × 20
Lp = 2 × 108 + 48 × 20
Lp = 216 + 960
Lp = 1.176cm²
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Jawaban:
A. Luas permukaan prisma = 1.176 cm²
Penjelasan dengan langkah-langkah:
Lp = 2 × L alas + K alas × t prisma
Lp = 2 × 1/2 × a × t + s+s+s × t prisma
Lp = 2 × 1/2 × 18 × 12 + 18+15+15 × 20
Lp = 2 × 108 + 48 × 20
Lp = 216 + 960
Lp = 1.176cm²