minta tolong dong kak.pake cara hehe

K = 2 (p + l)
72 = 2 (3l + l)
72 = 2 (4l)
72 = 8l
l = 72/ 8
l = 9

p = 3l
= 3 x 9
p = 27

L = p x l
= 27 x 9
L = 243
Jawabannya d.