A bead is formed by drilling a cylindrical hole of 2mm diameter through a sphere with an 8mm diameter. Estimate the volume of the bead.

The bead is in a cylindrical shape and the formula for solving the volume of a cylinder is V=pi*r²*h where "r" is the radius, "h" for the height.

We have given values such as:

r=diameter/2 = 2/2 = 1mm

h = 8mm

Solving for the volume, we have:

V=3.14*1²*8

V=24.12 mm²