tolong di jawab no 4 dengan cara

V. Prisma = luas alas × t
= 1 / 2 × a × t. Segitiga × t. Prisma
= 1 / 2 × 24 cm × 7 cm×40 cm
= 12 cm × 7 cm × 40 cm
= 84 cm² × 40 cm
= 3.360 cm kubik

No. 5
V. Kerucut = 1 / 3 × ( luas
alas) × t
= 1 /3 × 22 /7 × 49 cm² × 6 cm
= 1 /3 × 22 × 7 cm² × 6 cm
= 154 cm² × 2 cm
= 308 cm kubik

V. Tabung = π × r × r × t
= 22 /7 × 49 cm ² × 12 cm
= 22 × 7 cm ² × 12 cm
= 154 cm ² × 12 cm
= 1.848 cm kubik
V. Kerucut + V. Tabung = 308 cm kubik + 1848 cm kubik = 2.156 cm kubik
Semoga membantu ^-^