Question

a solid metal in the form of a sphere with a radius of 16 in is cut by a plane 4 inches from a nearer pole. find the area of the section.

Answer 1

The picture shows a section throught hte centre of the sphere

the plane is 4 inches from a pole, so 12 inches from the centre

You can use pythagoras to find th eradius r (that is th eradius of the cut circle)

Once oyu have th eradius - tha area is simple...