Answers

2014-03-29T21:41:20+05:30
The subject that deals with knowledge of angles more accurately.
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2014-03-30T07:21:12+05:30
The first part of the word is from Greek trigon "triangle". The second part of trigonometry is from Greek metron "a measure." The Indo-European root is probably me- "to measure." Trigonometry is literally the measuring (of angles and sides) of triangles. Historically speaking, the triangular approach to trigonometry is ancient, wheres the circular approach now taught in our schools is relatively recent.
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