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Which of the following is not a unit of length measurement?(a) Yards(b) Parsecs(c) Microns(d) GradsThe question was posed to me in an international level competition.My question is taken from Computer Aided Drafting topic in chapter Nomography, Computer Aided Drafting & Procedure of Estimating of Civil Engineering Drawing

Answer»

Correct answer is (d) Grads

For explanation I would say: The gradian is a unit of measurement of an angle, EQUIVALENT to 1/400 of a turn, 9/10 of a degree, or π/200 of a radian.

It is also known as gon (from Greek γωνία/gōnía for angle), GRAD, or GRADE. In continental Europe, the FRENCH term centigrade was in use for one hundredth of a grad. This was one REASON for the adoption of the term Celsius to replace centigrade as the name of the temperature scale.



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