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→History of Trigonometry
#Activity No #1
#Activity No #1
For History of Trigonometry [http://en.wikipedia.org/wiki/History_of_trigonometry click here]
For History of Trigonometry [http://en.wikipedia.org/wiki/History_of_trigonometry click here]
#Activity No #2
For History of Trigonometry slideshow [http://www.slideshare.net/rashidivya/trigonometry-maths-school-ppt-2 click here]
=='''Angle of rotation'''==
=='''Angle of rotation'''==