A sphere is inscribed inside a hemisphere of radius 2. What is the volume of this sphere?
I think the radius of tthe sphere would be 1.
So
\(V=\frac{4}{3}\pi*r^3\\ V=\frac{4}{3}\pi*1^3\\ V=\frac{4}{3}\pi\\ V\approx 4.2\; units ^3\)