White Lotus in blossom…

Angles – The seed of Trigonometry

Posted in Mathematics, Methinks by ytelotus on June 1, 2013

Angle in degrees or radians? Which one to choose? 

Why do we express angles in terms of fractions or multiples of π i.e. 30°, 90°, 180°, 360°… as  π/6, π/2, π, 2π … ?

Why does a circle have 360°?  Why is 360° = 2π?

What is behind the periodicity of trigonometric functions?

For answers, read on…