Ayo, hitunglah luas permukaan gabungan bangun ruang berikut!​

Jawaban:

lp kubus = 6x12x12

= 864cm²

lp balok = 2(pl + pt + lt)

= 2(36.12 + 36.12 + 12.12)

= 2 (432+432+144)

= 2 x 1008

= 2016cm²

lp gabungan = 864 + 2016

= 2880cm²