Kak kerjain no.4 sekalian jalannya

ρ = m÷v
vbola = 4/3πr³
ρ = m÷4/3πr³

d = 10 cm → 0,1 m
r = 0,05 m / 5.10⁻² m

ρ = 1/2÷4/3(22/7)(5.10⁻²)³
ρ = 1/2÷4/3(22/7)(125.10⁻⁶)
ρ = 1/2÷88/21 . 125.10⁻⁶
ρ = 1/2÷11000/21000000
ρ = 1/2÷11/21000
ρ = 954,5454 kg/m³
ρ = 0,954 g/cm³

maaf tadi ngga liat soal kalo diminta dalam g/cm³