Jawaban:
200 cm²
Penjelasan dengan langkah-langkah:
Diketahui : Prisma dengan alas segitiga sama kaki
t prisma = 20 cm
alas segitiga sama sisi
a = 5 cm
b = 5 cm
c = 5 cm
t segitiga = 10 cm
Ditanya : Luas permukaan prisma (Lp)..?
jawab:
Lp = [2 × (1/2 × Ls)] + [ ( kel.segitiga) × t prisma)]
= [2 × (1/2 × 5 × 10)]cm² + [(5 + 5 + 5) × 10]cm²
= [2 × 25]cm² + [ 15 × 10]cm²
= 50 cm² + 150 cm²
= 200 cm²
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Jawaban:
200 cm²
Penjelasan dengan langkah-langkah:
Diketahui : Prisma dengan alas segitiga sama kaki
t prisma = 20 cm
alas segitiga sama sisi
a = 5 cm
b = 5 cm
c = 5 cm
t segitiga = 10 cm
Ditanya : Luas permukaan prisma (Lp)..?
jawab:
Lp = [2 × (1/2 × Ls)] + [ ( kel.segitiga) × t prisma)]
= [2 × (1/2 × 5 × 10)]cm² + [(5 + 5 + 5) × 10]cm²
= [2 × 25]cm² + [ 15 × 10]cm²
= 50 cm² + 150 cm²
= 200 cm²