A continuous piece of a circle is called an ________ of the circle

If the length of an arc is less than the length of the arc of the semi circle then it is called ________

If radius of a circle is 4.5cm then what is its diameter?

The chord of a circle divides the circular region into two parts, each part is called ________

The region enclosed by an arc of a circle and its two bounding radii is called a _____ of the circle.

A line segment whose end points lie on a circle is called a _________

A line which meets a circle in one and only one point is called a ________ to the circle at that point.

If diameter divide the circle into two equal arcs, each of two arc is called a _________

The point at which the tangent touches the circle is called its ________

The set of all points of a plane which lie either on the circle or inside the circle form the _______