# Angles

Produced by the BBC for the British Open University

Introduces trigonometry as the mathemathical study of angles. Defines an angle and demonstrates the measurement of angles, radius, circumference, and radians. Provides an example of the practical need to understand the trigonometric function of tangents and the calculation of tangents related to heights and distances. Employs animation, graphics, and dramatized scenes. From the Mathematics: An Introduction series

- Kind: Educational
- Year: 1978
- By: Media Guild
- Genres: Education, Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/angles_201608)
- Licence or status: none stated by the archive
- Who can watch: Kids profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/angles_201608?play=1)