Answer:
Correct option: second one -> 141.3 cm3
Step-by-step explanation:
To find the volume, we can calculate the volume of two separates parts (one half sphere and one cone) and then sum the volumes.
Volume of half sphere:
V1 = (2/3) * pi * r^3
The radius is 3 cm, so:
V1 = (2/3) * pi * 3^3 = 56.5 cm3
The volume of the cone is:
V2 = (1/3) * pi * r^2 * h
The radius is 3 cm and the height is 9 cm, so:
V2 = (1/3) * pi * 3^2 * 9 = 84.8 cm3
Then, the total volume is:
V = V1 + V2 = 56.5 + 84.8 = 141.3 cm3
Correct option: second one
