The diameter is defined as a straight line which passes through the centre of a circle. It connects two points on the circumference of the circle. It is a straight line that connects the centre of the circle with two points on the perimeter of the circle. It also connects the centre of the sphere with two points on its surface.

The diameter of a circle is twice the radius of the circle. In other words, the radius of a circle is half the diameter of the circle. The word diameter is derived from two Greek words diairo, which means divide and metro, which means measure. It is a straight line segment. It passes through the centre of the circle. In other words, it is the line which divides a full circle into two semi-circles. A diameter is a chord. It is a chord that passes through the midpoint or centre of a circle.

The diameter of a circle is twice the radius of the circle. In other words, the radius of a circle is half the diameter of the circle. The word diameter is derived from two Greek words diairo, which means divide and metro, which means measure. It is a straight line segment. It passes through the centre of the circle. In other words, it is the line which divides a full circle into two semi-circles. A diameter is a chord. It is a chord that passes through the midpoint or centre of a circle.