gimana cara mengerjakannya? terima kasih.

a. Volume bandul =
Volume tabung + volume kerucut =

π × r × r × t + 1/3 × π × r × r × t =

22/7 × 1 cm × 1 cm × 7 cm +
1/3 × 3,14 × 1 cm × 1 cm × 3 cm =

22 cm³ + 3,14 cm³ = 25,14 cm ³


b. 25,14 cm³/1 cm³ × 8 gram =
25,14 × 8 gram = 201,12 gram