A flexible advertising banner is wound around a cylindrical drum. When 1.5m of the banner has been unwound, it makes an angle of 0.6rad at the centre of the drum. Use this information to answer the questions below.
(i) Find the radius of the drum, correct to two decimal places.
(ii) Express the central angle of 0.6rad in degrees, giving your answer to the nearest minute.
(iii) The banner continues to unwind until the central angle reaches 32πrad. How much additional length of the banner will be unrolled? (Give the answer in centimetres correct to the nearest whole number.)