Chord of a circle- A line segment with its end-points lying on a circle is called the chord of the circle.

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

Diameter a line segment passing through the centre of a circle and having its endpoints on the circle is called a diameter of the circle.

Fill in the blanks: The diameter of a circle is … times its radius The diameter of a circle is the … chord of the circle. The diameter of a circle pass through…. A chord of a circle is a line segment with its end points on the … If we join any two points on a circle by a line segment, we obtain… A radius of a circle is a line segment with one end at …. and the other end at…. All radii of a circle are… The diameters of circle are… The total number of diameters of circle is… Every point on a circle is…from its centre.. A chord of a circle contains exactly….points of the circle.. A diameter is the longest… Concentric circles are circle having….

Take two points A and C on the circle, them the line segment joining the point A and C is called a ………... of the circle.

Write True or False: Give reasons for your answers. (i) Line segment joining the centre to any point on the circle is a radius of the circle. (ii) A circle has only finite number of equal chords. (iii) If a circle is divided into three equal arcs, each is a major arc. (iv) A chord of a circle, which is twice as long as its radius, is a diameter of the circle. (v) Sector is the region between the chord and its corresponding arc. (vi) A circle is a plane figure.

A chord of a circle divides the circular region into two parts.Each part is called a segment of the circle.

A diameter of a circle is a chord that………the centre.

Write the truth value (T/F) of the following with suitable reasons: A circle is a plane figure. Line segment joining the centre to any point on the circle is a radius of the circle. If a circle is divided into three equal arcs each is a major arc. A circle has only finite number of equal chords. A chord of a circle, which is twice as long is its radius is a diameter of the circle. Sector is the region between the chord and its corresponding arc. The degree measure of an arc is the complement of the central angle containing the arc. The degree measure of a semi-circle is 180^0

If a line segment joining mid-points of two chords of a circle passes through the centre of the circle, prove that the two chords are parallel.