Q 1: If a semicircle subtends an angle of 180° at its centre, then it is called a sector. False True

Q 2: The angle of a sector is a semicircle is 180°. True False

Q 3: The length of the arc of a sector = (x°/360°)pr^{2}. True False

Q 4: Area of a sector = pr+2r. False True

Q 5: The region bounded by an arc of the circle and two radii joining centre to end points of arc is called sector of the circle. False True

Q 6: If two diameters of a circle are drawn perpendicular to each other, then the angles of the sectors formed are not equal. False True

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