Marcus du Sautoy visits an ancient Indian observatory, and explores how Indian mathematicians used trigonometry to make celestial observations. Using examples in right angled triangles, du Sautoy ...
The mathematical study of triangles has just got a whole lot simpler, according to a researcher who says his new theory of trigonometry is easier to use and more accurate. Associate Professor Norman ...
Revise the different types of angles and rules for calculating angles. This guide includes interactive activities and a quiz. NEW: Angles in parallel lines Revise alternate, correspondent or ...
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