Question
A cow is tied to a post by a rope. The cow moves along a circular path, always keeping the rope tight. If it describes 44 metres when it has traced out $72^\circ$ at the centre, the length of the rope is:
A cow is tied to a post by a rope. The cow moves along a circular path, always keeping the rope tight. If it describes 44 metres when it has traced out $72^\circ$ at the centre, the length of the rope is: