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Working with triangles
When using triangles it is possible to work out the length of a side of a triangle or the size of an angle within it if you know some of the other sides or angles.
The study of the relationship between the length of sides and the size of angles is called trigonometry.
You can scroll down to read all the help
in this topic or click on one of the links below to go straight to a specific
Types of triangle are classified in terms of their sides and angles, to find out about the individual types of triangle click on the links below:
There is help on working out the value of an angle in any triangle when you know the other two.
If working with right-angled triangles, there is help with:
Types of triangle
Written by Louise Thorpe, Learning and
Teaching Institute, Sheffield Hallam
Courseware designed by Mark Briggs, Centre for Multimedia in Education, Sheffield Hallam University
© LTI, Sheffield Hallam University 2000