tolong bantu perbandingan

P = 5 × n = 5n

l = 3 × n = 3n

T = 2 × n = 2n


V = P × l × T

810 = 5n × 3n × 2n

810 = 30n^3

n^3 = 810 ÷ 30

n^3 = 27 (diakarkan pangkat 3)

n^3 = 3


jdi

P = 5 × n = 5 × 3 = 15 cm

l = 3 × n = 3 × 3 = 9 cm

T = 2 × n = 2 × 3 = 6 cm


jdi


L = 2 × (p×l + p×t + l×t)

= 2 × (15×9 + 15×6 + 9×6)

= 2 × (135 + 90 + 54)

= 2 × 279

= 558 cm^2 (C)