Tolong bantu ya nomer 1

1.LP 1 = 2 ((P × L) + (P ×T) + (L × T))

LP 1 = 2 ((18 × 5) + (18 × 6) + (6 × 5))

LP 1 = (90 + 108 + 30)

LP 1 = 2 (228)

LP 1 = 456

LP 2 = (P × L) + ((P × T) + (L × T))

LP 2 = (12 × 5) + 2 ((12 × 5) + (5 × 5 ))

LP 2 = 60 + 2 (60 + 25)

LP 2 = 60 + 2(85)

LP 2 = 60 + 170

LP 2 = 230