volume bangun disamping adalah....cm³

V1 = A × T × L
= 35 × 18 × 20 = 12.600 cm3

V2 = A × T × L
= 15 × 18 × 20 = 5.400 cm3

V= V1 + V2
= 12.600 + 5.400
= 18.000 cm3

(Maaf Kalo Jawabannya Salah)