1

The diagram shows a sector of a circle with radius $14$ cm and angle $120^\circ$ at the centre. Work out the length of the arc of the sector. Give your answer correct to 3 significant figures. [3]

2

A sector of a circle has an angle of $36^\circ$ at the centre. What percentage of the area of a semicircle of the same radius is the area of this sector? [2]

3

The diagram shows a sector of a circle with radius $5$ cm and angle $45^\circ$ at the centre. Work out the perimeter of the sector. Give your answer correct to 3 significant figures. [3]