**1. Fill in the blanks:**

**(i)** The centre of a circle lies in **interior** of the circle. (exterior/ interior)**(ii)** A point, whose distance from the centre of a circle is greater than its radius lies in **exterior** of the circle. (exterior/ interior)**(iii)** The longest chord of a circle is a **diameter** of the circle.**(iv)** An arc is a **semi-circle** when its ends are the ends of a diameter.**(v)** Segment of a circle is the region between an arc and **the chord** of the circle.**(vi)** A circle divides the plane, on which it lies, in **three** parts.