Therefore, the volume of a hemisphere with radius r is half the volume of a sphere with radius r.
Volume of a Hemisphere [0.8em]
V=1/2(4/3π r^3) ⇔ V=2/3π r^3
To use this formula we first need to calculate the radius. To do so, we will consider the given hemisphere.
In the diagram, we can see that the diameter is 15km. Therefore, the radius is 15÷ 2= 7.5km. We can substitute this value for r in the formula for the volume of a hemisphere and simplify.
