21. Find the volume of the cone with a
diameter of 6 cm and a height of 12
cm in terms of . Formula: V=
1
3
r
2h
M. 432 cm3
N. 144 cm3
O. 36 cm3
To find the volume of a cone with a diameter of 6 cm and a height of 12 cm, we need to first find the radius.
The radius is half of the diameter, so the radius is 6 cm / 2 = 3 cm.
Now we can plug the values into the formula for volume:
V = (1/3) * π * r^2 * h
V = (1/3) * π * (3 cm)^2 * 12 cm
V = (1/3) * π * 9 cm^2 * 12 cm
V = (1/3) * π * 108 cm^3
V ≈ 113.1 cm^3
The volume of the cone is approximately 113.1 cm^3.
None of the given options match the calculated volume.