26-30 pakai cara tolong jawab ya?

nomer 29 jawabannya kubus

26. Luas trapesium = 1/2 x sisi sejajar x t
= 1/2 x ( 8 + 12 ) x 6 = 1/2 x 20 x 6
= 120/2 = 60 m 2

27. Luas permukaan kubus = 6 x r ^2
S = √64 = 8 == 8^2 x 6 = 384 cm ^2

28. Volume tabung = 3,14 x 20 x 20 x 38
= 1256 x 38 = 47728 cm ^3

29. Kubus

30. Volume kubus = s x s x s
= 27 x 27 x 27 = 19683 cm ^3