Answer:
R = 3.944
Step-by-step explanation:
πr²h for smaller cylinder
volume = 125
125 = πr²h
h = 125/π3² = 125 / 9π
as the two cylinders are cylinder,
for larger cylinder, πR²h
Volume = 216
216 = πR²h
216 = π R² (125/9π)
216 = R²×125 / 9
R² = 216 × 9 /125
R = √216 × 9 /125
R = 3.944
so, the radius of larger cylinder is 3.944.
