A tangent is a line or plane that touches a curved surface at only one point, but does not intersect with the surface at that point.
A sphere is a three-dimensional shape that is perfectly round and has all points on its surface equidistant from its center.
The tangent line to a sphere can be found by drawing a line from the point of tangency on the surface of the sphere perpendicular to the radius of the sphere at that point.
A pyramid is a three-dimensional shape with a polygonal base and triangular faces that meet at a common point called the apex.
A sphere can be inscribed in a pyramid, meaning that the vertices of the pyramid touch the surface of the sphere, and the center of the sphere lies on the center of the base of the pyramid.