Gimn cra nmr 43….yhaa

V air skrg 
= π × r² × t1
= 3,14 × 8² × 19
= 3818,24 cm³

V bola
= 4/3 × π × r³
= 4/3 × 3,14 × 6³
= 904,32 cm³

V air stlh dimasukkan bola
= 3818,24 + 904,32
= 4722,56 cm³

V air stlh dimasukkan bola = 4722,56
π × r² × t2 = 4722,56
3,14 × 8² × t2 = 4722,56
200,96 × t2 = 4722,56
t = 4722,56 : 200,96
t = 23,5 cm

Δt = t2 – t1
Δt = 23,5 – 19
Δt = 4,5 cm

Jawaban: D

Semoga membantu, ………