**Fill in the blanks :**

**(i) The centre of a circle lies in ___________ of the circle. (exterior/ interior)**

**(ii) A point, whose distance from the centre of a circle is greater than its radius lies in __________ of the circle. (exterior/interior)**

**(iii) The longest chord of a circle is a __________ of the circle.**

**(iv) An arc is a __________ when its ends are the ends of a diameter.**

**(v) Segment of a circle is the region between an arc and __________ of the circle.**

**(vi) A circle divides the plane, on which it lies in __________ parts.**

Solution:

(i) interior

(ii) exterior

(iii) diameter

(iv) semicircle

(v) the chord

(vi) three

**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.**

Solution:

(i) True

(ii) False

(iii) False

(iv) True

(v) False

(vi) True

For next exercise – Circles – Exercise 10.2 – Class IX

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