jenny makes models of canadian coast guard ships. she uses a scale of 3 cm to 1.5 m. a) what is the ratio of a length on the model to a length on the ship? b) the terry fox ship is 88 m long. how long is the model? c) the model of the otter bay is 27 cm long. what is the actual length of the otter bay? draw diagrams to show your answers.