Bntu kaks besok kumpul
Rumus volume tabung = π × r² × t
1. diketahui :
r = 4cm
t = 9 cm
cara :
V = 3,14 × 4 × 4 × 9
= 3,14 × 144
= 452,16 cm³
4 kaleng susu = 452,16 × 3
= 1.808,64 cm³
2. diketahui :
r = 7 cm
t = 19 cm
cara :
V = 22/7 × 7 × 7 × 19
= 154 × 19
= 1.386 cm³
3. diketahui :
d = 14 cm
r = d/2
= 14/2
= 7 cm
t = 21 cm
cara :
V = 22/7 × 7 × 7 × 21
= 154 × 21
= 3.234 cm³