Mastering Mathematics Form 3, the third book in an exciting new series for Ordinary Level Mathematics, is specially developed for Anglophone students enrolled in secondary schools in Cameroon. All the books in the Mastering Mathematics series give students extensive opportunities to investigate mathematical problems through various stimulating activities. Students are encouraged to discover their own methods and answers before they embark on exercises to consolidate their newly-gained knowledge. The special text design enhances students' ability to access information. The text is supported by margin boxes, providing additional information as well as reminding students of the various mathematical rules and theorems they will need. Answers at the back of each book give students the opportunity to check their own work.