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	Degrees and grads		2006-04-06
		Nazanin pose la question : which angle if you add 15 to its degree we can find its measure by grad? Stephen La Rocque lui répond.
	The origin of angles		1998-02-24
		Marc Poulin pose la question : I'm currently teaching angles to students in grade 10 and I've been asked what's the origin of the terms degrees, radians and gradians. I know that the radians come from the sexagesimal numerical system of the Babylonians but my kids wanted to know dates and persons who would have brought these terms first. Harley Weston lui répond.

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