tolong bantu jwb no 46,47dan48 menggunakan cara ya. tolong bantuannya

46.) luas permukaan kubus
= 6(s × s)
= 6(9 × 9)
= 6(81)
= 486 cm^2 (C)

47.) luas permukaan balok
= 2(p × l) + 2(p × t) + 2(l × t)
= 2(8 × 6) + 2(8 × 5) + 2(6 × 5)
= 2(48) + 2(40) + 2(30)
= 96 + 80 + 60
= 236 cm^2 (D)

48.) volume tabung
= (π × r × r) × t
= (22/7 × 14/2 × 14/2) × 20
= 3.080 cm^3 (C)