TOLONGIN JANGAN NGASAL NTAR REPORT!!!
Diketahui:
- a = 2 cm
- b = 5 cm
- t = 4 cm
- m = √4²+3² = √16+9 = √25 = 5 cm
- T = 10 cm
Ditanyakan:
- Lp = ... cm²?
Penyelesaian:
Lp = (2 × La) + (Ka × T)
Lp = (2 × ½ × (a + b) × t) + ((a + b + m + t) × T)
Lp = (2 × ½ × (2 + 5) × 4) + ((2 + 5 + 5 + 4) × 10)
Lp = (2 × 14) + (16 × 10)
Lp = 28 + 160
Lp = 188 cm²
Jadi, luas permukaan prisma adalah 188 cm²
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