Axis the line segment joining the centres of two circular bases is called the axis of the cylinder.

Axis the line segment joining the centres of two bases is called the axis of the cylinder.

Radius the radius of the circular bases is called the radius of the cylinder.

The radical axis of two touching circles divides the line segment joining the centre of circles in the ratio of their

Height the length of the line segment joining the vertex to the center of the base is called the height of the cone.

Axis of a prism the straight line joining the centres of the ends of a prism is called the axis of the prism.

Slant height the length of the line segment joining the vertex to any point on the circular edge of the base is called the slant height of the cone.

Height the length of the axis of the cylinder is called the height of the cylinder.

CHORD OF A CIRCLE A line segment joining any two point on a circle is called a chord of the circle.