pakai cara...............

bangun 1= 16×16×16:4096
bangun 2=1\2 ×10×16×16:1280
volume= 4096+1280 = b.5376

Bab Bangun Ruang
Matematika SD Kelas VI

30] Prisma alas trapesium
volume = (1/2 x jumlah sisi sejajar x t) x tp
volume = (1/2 x (26 + 16) x 16) x 16
volume = 5.376 cm kubik

jawabannya B

31] volume air = 2/3 x volume balok
volume air = 2/3 x p x l x t
volume air = 2/3 x 10 x 6 x 1,5
volume air = 60 m kubik

jawabannya A