p = 2,5 m
l = 1 m
t = 1,5 m
Luas permukaan
= 2 × ((p × l) + (p × t) + (l × t))
= 2 × ((2,5 × 1) + (2,5 × 1,5) + (1 × 1,5))
= 2 × (2,5 + 3,75 + 1,5)
= 2 × 7,75
= 15,5 m²
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p = 2,5 m
l = 1 m
t = 1,5 m
Luas permukaan
= 2 × ((p × l) + (p × t) + (l × t))
= 2 × ((2,5 × 1) + (2,5 × 1,5) + (1 × 1,5))
= 2 × (2,5 + 3,75 + 1,5)
= 2 × 7,75
= 15,5 m²