Protractor the UK. Protractor A protractor is a measuring instrument, typically made of transparent plastic or glass, for measuring angles. Most protractors measure angles in degrees (°). Radian-scale protractors measure angles in radians. Most protractors are divided into 180 equal parts. Some precision protractors further divide degrees into arcminutes. They are used for a variety of mechanical and engineering-related applications. One common use is in geometry lessons in schools. Some protractors are simple half-discs. More advanced protractors, such as the bevel protractor, have one or two swinging arms, which can be used to help measure the angle. A bevel protractor is
Circular Quay end of Sydney Cove. Circular Quay increasingly became a tourist destination in its own right. Between 1971 and 1989, Colonial Mutual Life acquired land along Circular Quay for a large scale development. The initial, highly controversial design, was revised after the intervention of Prime Minister Paul Keating. In return for reducing the height of the building and adding a colonnade to facilitate public access, the development was permitted to extend further towards the foreshore, with the design finalised in 1992. In 1984, Lionel Todd (Sydney Opera House Stage 3 Architect), proposed his semi-circular quay concept to enhance views of the